0

Category: Couplings

The Gears that Grind: Essential Mechanical Parts in Quarry Equipment

Quarries are the industrial giants that provide the raw materials for construction, infrastructure, and countless other applications. But these massive operations rely on a complex network of machinery, and within that machinery lies a world of essential mechanical parts working tirelessly. Let’s delve into some of the key equipment found in a quarry and the mechanical parts that keep them functioning.

1. Drilling and Blasting:

Drill Rigs: Powerful rotary or hammer drills use high-strength drill bits and robust bearings to penetrate rock. Hydraulic cylinders power the drill’s movement, while valves control fluid flow. Here, different types of couplings come into play:

-Rigid flanged couplings: These couplings connect the drive shaft from the engine or motor to the gearbox of the drill.

-Power Locks: Heavy duty shaft locking devices are also used on rigid flanged couplings. They provide easy, strong, and secure connections between shafts and hubs without backlash.

-Jaw couplings: Fenner Jaw couplings are perfect for absorbing shock and misalignment between the engine and gearbox, protecting the drivetrain.

2. Excavation and Loading:

Excavators: These versatile machines feature a hydraulic arm with a powerful bucket attached. The arm’s movement is controlled by a network of hydraulic pumps, motors, and valves. Tracks or wheels provide traction, while slewing rings allow the excavator to rotate its upper body. The excavator’s performance relies heavily on:

-Gearboxes: Excavators require gearboxes to increase the torque from the hydraulic motors to provide the necessary digging force at the bucket. These heavy-duty operations often use a planetary gearbox. Check out the SITI Planetary gearbox – used commonly in quarries, this gearbox is compact, and has a high power density with high efficiency continuous operation.                                               

-V-belts: These are often used to drive auxiliary systems on the excavator, like the cooling fans. Check out Fenner V belts as they used commonly in quarries and one of longest-lasting belts out there.

3. Crushing and Screening:

Jaw and cone crushers: Jaw crushers use massive jaws with replaceable wear plates and leverage shafts, bearings, and eccentric mechanisms to break down rocks. Cone crushers, on the other hand, rely on a spinning cone and a fixed wall, using conical bearings and shafts for size reduction. Motors drive the cone’s rotation, and similar to jaw crushers, they likely utilize couplings and gearboxes to achieve the perfect crushing speed and force. Both crusher types then use screens to sort the crushed material into desired sizes.

-Couplings: Similar to drill rigs, jaw crushers likely use flange or jaw couplings to connect the motor to the crusher’s main shaft.

-Gearboxes: Gearboxes are crucial in jaw crushers, as they step up the motor’s speed and torque to create the immense crushing forces.

-Crusher Jamming: Crusher jamming incidents are a frequent headache in quarries, caused by things like big rocks, stray metal, or even wet material. These jams can quickly ruin the crusher’s belts by overheating and burning them. To keep downtime to a minimum during these emergencies, it’s important to have the right replacement belts on hand and ready to swap in. In this case, the Fenner PowerTwist Plus belt is a problem-solver and a game-changer. They are built to replace those old metric SPZ, SPA, SPB and SPC wedge belts, and they work perfectly on existing pulleys. One huge advantage is that these “link belts” work like a chain- you can add or remove links during installation and adjust to get the exact length you need for your machine. they also conquer tough environments with oil, grease, water, most chemicals and solvents. They resist abrasion better and can handle a wider temperature range, from a frigid -40°C to a scorching 116°C.                                                           

4. Conveying Systems:

Belt Conveyors: Belt conveyors are the most prevalent type of conveyor system employed within the mining and quarrying industries.

-Gearboxes: These conveyors, sometimes referred to as feeders, utilize shaft-mounted gearboxes to facilitate material transportation along inclines of minimal grade. The Fenner SMSR Gearbox (shaft mounted speed reducer) is used commonly in this application, with torque capacity up to 45,000Nm. It consists of a taper-Grip bush for easy removal and fitting. Additionally, bevel helical and worm gear reducers find application in these belt conveyor systems. Shafttech has assisted many quarries in using SITI bevel helical and SITI worm gearboxes (Italy) for high quality and reliable operations.

-Idlers and rollers: These support the conveyor belt and ensure smooth movement of the material.

-Scraper blades: These remove excess material buildup on the belt to prevent slippage and belt damage

Ensuring your quarry runs smoothly requires reliable and efficient equipment. Our team of experts can assist you in selecting the right compressors, crushers, conveyors, and other essential equipment to maximize productivity and minimize downtime.

Contact Shafttech today and let us be your partner in achieving your quarrying goals.

Shafttech is the no. 1 heavy industry expert in Southeast Asia.

Cooling Tower Couplings: ESCO FIL (Composite) Couplings and Fenner Tyre Couplings

Among the vital components of a cooling tower, couplings play a crucial role. Couplings connect the motor and the gearbox to the cooling tower fan, ensuring smooth and efficient power transmission. They must withstand harsh operating conditions, including high torque, misalignment, and thermal expansion. High-quality couplings reduce maintenance costs, improve efficiency, and extend the lifespan of the cooling tower.

ESCO FIL (Composite) Couplings: A Case Study in Malaysia

 

One of the standout solutions in the cooling tower coupling market is the ESCO FIL (Composite) Coupling. Recently, in a significant oleochemical plant cooling tower in Malaysia, the ESCO FIL Coupling E75 S3 was proposed to replace traditional elastomeric couplings, which needed to be changed every 3-6 months. This replacement was driven by the need for a more robust and reliable solution.

Advantages of ESCO FIL Couplings Over Traditional Elastomeric Couplings:

1.Weight: The composite material of ESCO FIL Couplings makes them lighter than traditional elastomeric couplings, reducing the load on the cooling tower’s drive system.

2.Long distance between shaft ends (DBSE): ESCO FIL Couplings enable long DBSE without the need for support bearings, unlike elastomeric couplings.

 

3.Lifespan: ESCO FIL Couplings offer a longer lifespan due to their superior resistance to wear and environmental factors, leading to fewer replacements and lower maintenance costs. Specifically designed for cooling tower applications, these couplings are corrosion-resistant and can last up to 10 years with minimal maintenance.

4.Maintenance: ESCO FIL Couplings require little to no maintenance, unlike the elastomeric couplings which typically requires a change in element every 3-6 months. We do recommend a visual inspection on the disc element during regular equipment maintenance. If damaged by unforeseen external factors such as increased loading or massive shaft alignment, the disc elements can be replaced easily as well. 

5.Cost: Despite their advanced features, ESCO FIL Couplings are cost-effective in the long run due to their durability and reduced need for frequent maintenance. The initial investment in these couplings is offset by the savings in maintenance and downtime costs​​.

6. Material: Plants like oleochemical often present a harsh corrosive environment for their equipment with water, chlorine and bromine. The hubs and hardware are made from stainless steel for added corrosion protection in aggressive environments. The hubs and hardware are made from stainless steel for added corrosion protection in aggressive environments.

Fenner Tyre Couplings: Ideal for Smaller Cooling Towers

While ESCO FIL Couplings are perfect for large, demanding applications, tyre couplings, such as Fenner Spacer-type Tyre Couplings, are suitable for smaller cooling towers. These couplings offer flexibility and ease of installation, making them ideal for less demanding applications. They can absorb misalignment and vibrations, protecting the connected equipment from potential damage.

Features of Fenner Spacer-type Tyre Couplings:

Perfect for Long DBSE: Spacer-type Tyre couplings from Fenner, known as the Fenaflex Spacer, consists of an additional spacer flange assembly. Designed for standard DBSE 80, 100, 140 and 180mm, perfect for cooling towers!

Misalignment Capacity: Fenner Tyre Couplings are designed to handle high amounts of misalignment and dampen vibrations, ensuring smooth operation of the cooling tower.

Ease of Installation: These couplings only require a replacement of the tyres without shifting machinery, making them easy to install and maintain. Spacer-tyre tyre couplings also only required to move both shaft axially without disturbing the drive nor driven machine (e.g. centrifugal pump rotors). Therefore, reducing the time and effort required for setup and replacement.

Cost-Effective: Fenner Tyre Couplings provide a cost-effective solution for smaller cooling towers, balancing performance and affordability​​.

Conclusion

Choosing the right coupling for your cooling tower is critical for ensuring operational efficiency and longevity. Whether you need the robust performance of ESCO FIL (Composite) Couplings for large industrial cooling towers or the flexibility of Fenner Tyre Couplings for smaller setups, Shafttech provides the expertise and high-quality products to meet your needs.

Contact us today to learn more about our coupling solutions and how we can help you enhance your cooling tower performance.

Visit here for more information.

The Vital Mechanics of Chemical Production: Essential Equipment and Unsung Heroes

Chemical plants are the lifeblood of many industries, producing everything from fertilizers and plastics to pharmaceuticals and cleaning agents. But behind the complex chemical reactions lies a hidden world of essential mechanical products. These workhorses, both the well-known and the less-celebrated, keep the processes running smoothly, efficiently, and most importantly, safely.

The Flow of Power: Pumps, Compressors, and their Transmission Partners

At the heart of material movement are pumps, the tireless champions of liquid and slurry transfer. But a pump’s success story relies on its supporting cast:

Couplings

The critical link between the pump shaft and the motor’s driveshaft.

1.Gear couplings ensure smooth power transfer for applications with perfect shaft alignment. ESCO Gear Couplings are known in the market for its ability to transmit high torque despite a small coupling size, reducing stress on on machinery.

2.Tyre couplings or Disc Couplings are often used to accommodate shaft misalignment while dampening vibrations. Fenner Tyre coupling is the market standard for tyre couplings; Installation is easy and you only require to change tyres every 1-2 years, which makes it perfect for most pumps. If the torque capacity and speed is higher, ESCO Disc Couplings will come in handy. ESCO Disc couplings are designed for infinite life, and no lubrication is needed. For chemical plants, ATEX certification is sometimes required, and ESCO Disc couplings can offer an ATEX disc couplings for hazardous environments. When high shock loads are anticipated, jaw couplings with their interlocking teeth provide a robust connection.

Gearboxes

When a pump requires a change in speed or torque output from the motor, gearboxes step in. These marvels utilize a series of precisely machined gears to achieve the desired speed or torque multiplication, allowing the pump to operate at its optimal efficiency. Helical gearboxes offer smooth, quiet operation, while helical-bevel gearboxes provide a right-angle power transfer with high efficiency. The Fenner (UK) Bevel Helical gearbox is popular for chemical plants due to its high quality and cost-effectiveness.

The Art of Mixing: Mixers, Agitators, and their Unsung Heroes

Many chemical reactions rely on constant, thorough mixing to guarantee proper ingredient interaction. Mixers and agitators come in various forms, but their operation hinges on:

Shafts

These long, rotating rods act as the power conduit, transmitting torque from the motor or gearbox to the mixing impellers. Stainless steel shafts are a popular choice for their corrosion resistance in many chemical applications. For especially harsh environments, exotic metal alloys may be necessary.

Bearings

These unsung heroes support the rotating shaft, minimizing friction and wear. Chemical plants often rely on heavy-duty bearings designed to handle high loads and withstand the corrosive nature of the processed chemicals. Self-lubricating bearings and Oilless Bushings, can be crucial in applications where external lubrication is impractical. One big exporter of Oilless Bushings is Shafttech. Shafttech carries a wide range of Oilless Bushings.

Separation Science: Centrifuges, Filters, and their Control Network

Chemical processes frequently involve separating components with distinct physical properties. Centrifuges and filters play a vital role in this separation, but they often require additional components for precise control:

Clutches and brakes

These engage and disengage power to the centrifuge or filter, enabling smooth start-up, controlled operation, and safe stopping. Magnetic particle clutches provide a non-contact, wear-free solution for high-speed applications, while pneumatic clutches offer a simple and reliable option for lower-speed requirements. Disc brakes deliver precise stopping power for a controlled deceleration of the centrifuge or filter.

Speed reducers

In some centrifuges, meticulous control over rotational speed is paramount. Planetary gear reducers or Planetary Gearboxes provide a compact and high-ratio speed reduction solution, while worm gearboxes offer a self-locking feature for applications requiring shaft hold during downtime. SITI (Italy) is a champion in this range of products, specialising in high quality worm gearboxes and and the bigger planetary gearboxes for chemical plants.

These are some of essential mechanical products that keep chemical plants running. From the powerful pumps to the precisely designed valves and their supporting cast, each piece plays a vital role in the safe and efficient production of the chemicals that underpin our modern world.

If you encounter any technical failures or wish to upgrade any part of your plant, you can contact our team of technical engineers salesco1@shafttech.com who can assist you with replacement, selection and recommendation of new parts, frequent failure inspection, cost-down maintenance. Shafttech is one of the most trusted providers for heavy industries in Southeast Asia.

ATEX Couplings in the Oil and Gas Market: ESCO, Renold, Fenner, and Rexnord Thomas

The oil and gas industry relies on complex machinery and equipment, including ATEX (Atmosphères Explosibles) couplings, to operate safely and efficiently in potentially explosive environments. In this article, we will provide a comprehensive review of ATEX couplings from renowned brands like ESCO, Renold, Fenner, and Rexnord Thomas.

Understanding ATEX Couplings

ATEX couplings are crucial for operating in environments with explosive gases, vapors, or dust. They adhere to the ATEX directive, setting standards for equipment and protective systems used in explosive atmospheres. ATEX couplings are primarily used in Group II environments, which encompass various industries, including oil and gas.

 

Shafttech is the the official distributor for ESCO, Renold and Fenner ATEX couplings.

Each of these brands carry different types of ATEX couplings. In this article, we will highlight their advantages and usage in the Oil & Gas industry.

ESCO ATEX Disc Couplings: Ensuring Safety and Reliability

ESCO is a global leader in ATEX Disc couplings for the oil and gas industry. ESCO’s ATEX Disc couplings are engineered with precision and robustness, ensuring safety and reliability in hazardous areas. With top-notch materials and advanced engineering, ESCO’s products are a trusted choice for professionals in the industry. Shafttech has been appointed the official distributor of ESCO Couplings.

ESCO’s Disc Couplings are designed, calculated and tested for infinite life. These couplings allow for high torque and misalignment capacity, has excellent inherent balance and is easy to assemble and disassemble. For maintenance, it is easy as no lubrication is required and inspection of coupling can be done without disassembling it. For more in depth information on ESCO Disc couplings, you can find it here.

ESCO ATEX Disc couplings is an add-on option for use in explosive environments. This ESCO ATEX variant has “EX” markings on the coupling as seen in the image above. This signifies to the engineers that it is an ATEX-certified coupling. For ESCO Disc couplings, Shafttech’s engineers will do their selection based on ESCO DPU Series, which meets API610 Standards (American Petroleum Institute).

Renold ATEX Flexible Couplings: Innovation and Quality

Renold, a reputable name in power transmission solutions, offers a range of ATEX couplings tailored for the oil and gas market. Renold’s ATEX couplings are known for their longevity, performance, and commitment to innovation and quality. They are a preferred choice for reliable solutions in hazardous areas.

As Renold’s official distributor, Shafttech has served many companies in the oil and gas sector. Common series of Renold couplings include the Renold DCB-GS Flexible Coupling, the Renold RB Flexible Coupling, and Renold HTB-GS Flexible Coupling. Shafttech can provide both the replacement parts like the rubber blocks and rubber tubes, or the whole set coupling.

Fenner ATEX Tyre Couplings: Durability and Adaptability

Fenner is known for its ATEX coupling solutions that meet the stringent safety and performance requirements of the oil and gas sector. Fenner’s ATEX couplings are designed for durability and adaptability, making them valuable in oil and gas operations where safety is paramount. Tyre couplings are known to take high amounts of misalignment and dampen shock vibrations from surrounding equipment. It is also one of the easiest coupling to maintain as you only need to replace the tyre element once every 2-3 years. The fact that they can be used in almost all applications make them one of the most popular couplings in the market now. More information on Fenner Tyre couplings here.

Shafttech also distributes Fenner Tyre Couplings with ATEX markings! These are typically used with the FRAS (Fire Resistant Anti Static) tyres in the oil and gas sector. Should you require ATEX certifications or markings on your tyre couplings, please enquire with us.

Rexnord Thomas ATEX Couplings: Safety and Reliability

Rexnord Thomas is another trusted provider of ATEX couplings in the oil and gas industry. Rexnord Thomas ATEX couplings prioritize safety and reliability, performing well in challenging conditions and offering superior protection against the hazards of explosive atmospheres.

Shafttech is well-versed in selection of ATEX couplings, which can often be quite tricky to do. We have worked with numerous Chemical, Oil & Gas plants in replacing their non-ATEX couplings to ATEX ones to ensure safety compliance. Our technical engineers will conduct a site visit for a full technical assessment before selecting a suitable coupling for the application.

Send us your enquiry at sales@shafttech.com and we will be able to select a suitable coupling for you.

ESCO Disc Couplings: Design for Infinite Life

In the world of machinery and industrial equipment, the seamless transmission of power and motion is a critical factor in ensuring optimal performance. In heavy industries, disc couplings play a pivotal role in this process. It is perfect for high speeds and even high torque. Disc couplings accommodates a good degree of misalignment, and efficiently transmits torque with with utmost reliability. Among the various options available, ESCO disc couplings stand out for their exceptional engineering and the unique benefits they bring to the table. In this article, we will delve into the realm of ESCO disc couplings, exploring their different types and the valuable advantages they offer to industries.

ESCO Disc Couplings: An Overview

ESCO, a renowned manufacturer with a long history of over a 100 years, is specialised in the manufacturing of couplings. They are globally recognised for their gear and disc couplings that cater to the diverse needs of industries. ESCO couplings originate in Belgium and are celebrated for their precision engineering, resilience, and ability to accommodate substantial misalignment. ESCO Couplings is a manufacturer which focuses their core business on the design and manufacture of great couplings which makes ESCO coupling the preferred choice across various applications.

ESCO Disc Couplings – Why they stand out?

ESCO disc couplings bring several significant advantages to the table, making them the preferred choice for numerous industries:

  1. Exceptional Misalignment Tolerance:
    • ESCO couplings can accommodate angular, axial, and parallel misalignment, reducing stress on connected equipment and extending their lifespan.
  2. High Torque Capacity:
    • Thanks to their robust construction and precision engineering, ESCO disc couplings can transmit high levels of torque without compromising performance.
  3. Long Service Life:
    • Designed to endure challenging operating conditions, ESCO disc couplings offer long-term reliability, reducing maintenance costs.
  4. Minimal Downtime:
    • Quick and straightforward installation, coupled with low maintenance requirements, ensures minimal downtime, increasing overall productivity.
  5. Versatility:
    • ESCO disc couplings suit a wide array of applications, from small machinery to heavy industrial equipment.
  6. Safety and Compliance:
    • ESCO offers ATEX disc couplings that adhere to stringent safety standards for use in hazardous environments, ensuring worker safety and regulatory compliance.

Types of ESCO Disc Couplings:

ESCO Disc Couplings are used across many industries including: Agriculture, Cement, Food and Beverage, General Machines, Petrochemical and Refinery, Power Generation, Quarrying and Mining, Rail, Renewable Energy, Steel & Non-Ferrous, Textile, Wood Pulp and Paper

ESCO offers a range of disc coupling types, each tailored to specific industrial requirements:

  1. DPU (Disk Pack Unit) Series – Designed for Infinite Life

  • -**Positively centered and assembled in factory so errors are minimized
  • -Properly balanced (API671) to API guidelines. Each bolt individually weighted and matched.
  • -Maintenance-free, NO lubrication, Zero backlash
  • -Disc packs are secured by shipping screws and is protected from damage
  • -Easy assembly and disassembly: They are designed in a way that allows the user to mount it to the the shafts easily
  • -Marking present to match hub to the disk pack.
  • -**Patented technology of Disc Shape between discs allows for no fretting corrosion (caused by metal rubbing)
  • -Optimisation of Disc Thickness that prevents buckling
  1. 2. DMU (Disk Mounted Unit) Series

  • -Can take a much higher torque than DPU. Torque up to 260000Nm, Bore up to 370mm
  • -Maintenance-free, No lubrication needed, zero backlash
  • -DMUCC – split type couplings with two discs

3. ATEX Disc Couplings

  • -Designed to meet ATEX requirements, these couplings are suitable for use in explosive atmospheres.
  • -ATEX disc couplings provide safety and reliability in hazardous environments, making them vital for industries like petrochemicals and mining.

 

ESCO disc couplings represent a pinnacle of innovation and engineering excellence. Their ability to tolerate misalignment, transmit high torque, and ensure long service life has made them indispensable across various industries.

Shafttech can assist with the selection of couplings for your specific applications, ultimately enhancing your equipment’s performance and longevity. For strive to service with short lead times, and partner our clients on custom designs.Send us your enquiry at sales@shafttech.com and we will be able to select a suitable coupling for you.

Efficient Steps for Fenner Tyre Coupling Installation: A Comprehensive Guide

Discover the precise steps for installing Fenner Tyre couplings from inspecting components to performing load tests, for a smooth and reliable installation process. The proper installation of Tyre couplings plays a pivotal role in ensuring optimal performance and longevity.

1. Pre-Installation Inspection: Ensuring a Solid Foundation

Before diving into the installation process, conduct a thorough inspection of all components. Check for any signs of damage or wear and ensure that the shaft ends are clean, dry, and free from contaminants. This proactive step sets the stage for a smooth and reliable installation.

A standard Tyre coupling consists of two couplings hubs, two taper locks and one tyre element.

2. Remove Flanges from Coupling Hubs

Unscrew the clamping rings to remove the flanges from coupling hubs.

3. Positioning the Coupling Hubs with the right DBSE

Mount the two coupling hubs on the respective shaft ends, with one hub loosely fitted. This allows for adjustment to achieve the right gap distance. Measure the gap between the hubs and ensure that it follows the gap requirement in the catalogue. Once the distance is confirmed, tighten the loose hub.

Follow the specified torque values provided by Fenner to ensure proper and uniform tightening. Fenner Tyre couplings are designed for efficiency, and accurate positioning is key to their performance.

4. Install the backing plates

Use the clamping rings to screw on the flanges on both inner sides of the hubs loosely.

5. Place the Tyre over the flanges 

Open out the tyre element and fit over the coupling flanges, ensuring the groove within the tyre sits properly on the flanges. You may use a rubber hammer if adjustment is required. Tighten the clamping rings to secure the coupling. While tightening the coupling, ensure that the gap in the tyre element follows the requirements in the catalogue.

Fenner’s flexible tyre element is engineered to provide resilience and durability, making it a crucial component in the power transmission system. Ensure a snug fit for optimal functionality.

6. Alignment Check: Precision for Performance

Verify the correct alignment of the coupling. Misalignment can lead to premature wear and reduced efficiency. Utilize alignment tools to check for both angular and parallel misalignments, making necessary adjustments as needed.

7. Ensure clamping rings are tightened properly

Double-check and tighten all clamping rings according to Fenner’s recommended torque values. This attention to detail ensures the integrity of the coupling assembly, preventing issues down the line.

8. Trial Run and Full Load Test

Once installed and checked, allow the coupling to run with equipment under load for a short period of time. After which, check the clamping rings’ torque ratings and ensure it still follows Fenner’s recommended torque values. It is vital to validate that the coupling performs as expected under operational conditions.

For a clear video installation video, refer to: Fenner Coupling Installation Video

Trust in Shafttech, an expert in Industrial Couplings

By following these expert-recommended steps for Fenner Tyre coupling installation, you not only ensure optimal performance but also contribute to the longevity and efficiency of your industrial machinery. Trust in Fenner’s quality and master the art of installing tyre couplings for a seamless and reliable power transmission system. Your machinery deserves nothing less.

Contact Shafttech today at sales@shafttech.com and we will be able to assist with your queries.

Selecting the Right Tyre Coupling

Tyre couplings play a crucial role in connecting rotating shafts and transmitting power efficiently. Whether you are replacing existing couplings, choosing tyre couplings for new projects, or exploring new options, choosing the right tyre coupling is essential for maintaining optimal performance and preventing downtime. In this guide, we’ll explore two perspectives on selecting the right tyre coupling: one for replacement and the other for a brand new selection.

Replacing your Couplings: Ensuring Compatibility for Efficient Replacement

When replacing a tyre coupling, it is crucial to identify and match the specific model and components. The tyre coupling consists of five main parts: the tyre, the two hubs, and the two taper bushes. Here’s a step-by-step guide to selecting the correct replacement parts:

a. Identification of part number on Tyre couplings and Taper Bush: Start by examining the existing tyre. Look for any markings, model numbers, or specifications imprinted on the surface. These markings often include information about the material, size, and load capacity of the tyre. Take note of these details as they are crucial for finding a suitable replacement.

Image 1: The part number “F110H-3020” is printed on the hub. This is the full Tyre coupling part number. “3020” stands for the taper bush part number.

Note that if there’s special indications such as FRAS, which stands for “Fire Resistant Anti Static”.

b. Consult with Experts: If you encounter challenges in identifying the coupling model or finding suitable replacement parts, let Shafttech know and we will assist with this.

New Selection: Selecting Tyre couplings for new applications or projects or Changing a Pin & Bush Coupling to Tyre Coupling

Selecting a tyre coupling from a catalogue involves a systematic consideration of various parameters to ensure compatibility with your specific application. Here’s a step-by-step guide that takes into account motor power, output speed, output torque, shaft sizes, and DBSE (Distance Between Shaft Ends):

  1. Gather System Information: Collect the following information about your system:
    • Motor Power (kW or HP)
    • Output Speed (RPM)
    • Output Torque (Nm or lb-ft)
    • Shaft Sizes (diameters and keyway dimensions)
    • DBSE Distance (Distance Between Shaft Ends)
  2. Refer to the Catalog Index: Start by looking at the index of the Fenner Tyre coupling catalogue. Look for theection related to motor power, output speed, torque ratings, shaft sizes, and DBSE.
  3. Filter by Motor Power: Find the section in the catalog that corresponds to the motor power of your application. This narrows down the options to couplings suitable for your motor.
  4. Consider Output Speed Requirements: Within the selected motor power range, choose the range that matches your application’s based on the output speed requirements.
  5. Evaluate Torque Ratings: Check the torque ratings provided for the couplings within the selected power and speed ranges. Ensure that the selected coupling can handle the torque generated by your application.
  6. Verify Shaft Size Compatibility: Look for detailed specifications on shaft sizes for each coupling. Verify that the coupling’s maximum bore sizes match the diameters of your shafts. Pay attention to keyway dimensions as well.
  7. Incorporate DBSE Requirements: Find the section in the catalog that provides information on DBSE or overall dimensions. Choose the range that accommodates your system’s DBSE requirements. Consider the flexibility of the coupling in dealing with DBSE limitations. Shafttech offers special Spacer-type Tyre couplings from Fenner that can accommodate longer gaps between machinery.
  8. Examine Construction Materials: Evaluate the materials used in the construction of the coupling. Consider factors such as environmental conditions, temperature, and corrosion resistance. Is there a need for explosion proof or fire resistant anti static properties?

By following these steps and considering motor power, output speed, output torque, shaft sizes, and DBSE, you can make a comprehensive and informed selection of a tyre coupling that meets the specific needs of your application. Shafttech is an expert in couplings for all industries. If you are looking for any kind of couplings, contact us today at sales@shafttech.com and we will be able to discuss your specific needs.

Renold DCB Couplings: Powering Efficiency Across Industries

In the fast-paced landscape of power transmission, choosing the right coupling is paramount for ensuring optimal machinery performance. Renold, a global leader in power transmission solutions, presents the DCB (Double Crowned Tooth) coupling, a game-changer in various industries.

This article explores the features and applications of Renold DCB couplings, shedding light on their significance in enhancing performance and reliability across diverse sectors.

Features of Renold DCB-GS Flexible Couplings:

  1. Rubber in Compression Technology: The innovative rubber compression design of Renold DCB couplings ensures optimal load distribution, significantly extending the coupling’s lifespan and enhancing overall efficiency. It is a foolproof and very quiet solution as there are no metal to metal contact.
  2. Flexible Element: Featuring a flexible element, DCB couplings absorb shocks and misalignments, safeguarding connected machinery from damage caused by vibration, torsional fluctuations, and other dynamic loads. Prevents against severe shock loads.
  3. High Misalignment Capacity: Renold DCB couplings accommodate both angular and parallel misalignments, providing versatility crucial in industries where precise alignment is challenging or subject to change.
  4. Torque Density: Engineered for high torque density, DCB couplings ensure efficient power transmission without compromising on compactness, making them ideal for applications with limited space.
  5. Corrosion Resistance: Constructed from high-quality materials, Renold DCB couplings exhibit excellent corrosion resistance, enhancing durability and suitability for applications in harsh environments.

Applications Across Industries:

  1. Industrial Gearboxes: DCB couplings find extensive use in industrial gearboxes, offering a reliable connection between input and output shafts. Their ability to handle misalignments and shock loads makes them ideal for gear-driven machinery.
  2. Pumps and Compressors: Well-suited for pumps and compressors, DCB couplings maintain smooth and reliable operation, even in applications prone to misalignments.Designed to take Diesel Powered Generator sets from 50kW and above.
  3. Material Handling Equipment: Renold DCB couplings are robust solutions for material handling systems, ensuring continuous and reliable performance in conveyor systems and other equipment where misalignments are common.
  4. Renewable Energy: In renewable energy applications, such as wind turbines, DCB couplings play a crucial role by absorbing vibrations and accommodating misalignments in dynamic environments.
  5. Mining and Construction Equipment: In rugged mining and construction environments, Renold DCB couplings provide a durable and reliable connection, contributing to the efficiency and longevity of equipment subjected to harsh conditions.

For industries seeking reliable power transmission solutions, Renold DCB couplings emerge as versatile and durable choices. Whether in industrial gearboxes, material handling, renewable energy, or mining and construction, the double crowned teeth design, flexibility, and high torque density of DCB couplings make them indispensable.

In a world where machinery efficiency is non-negotiable, Renold DCB couplings stand out, ensuring seamless operations, durability, and adaptability across diverse applications. Explore the power of Renold DCB couplings for your industry’s unique needs and witness enhanced performance that goes beyond expectations.

Shafttech: The Official Distributor for Renold Flexible Couplings and Replacement Parts

Range of Renold Flexible Couplings at Shafttech:

  1. RBI Coupling: The RBI Coupling, known for its robust design, is available at Shafttech to meet your specific coupling requirements. Its durability and performance make it a preferred choice for various industries.
  2. PM Coupling: Explore the PM Coupling series at Shafttech, designed for optimal power transmission efficiency. We ensure availability and reliable performance for your machinery.
  3. RB Coupling: The RB Coupling, renowned for its versatility and durability, is part of our comprehensive inventory. Shafttech is your go-to supplier for RB Couplings, ensuring seamless operations in your industrial applications.
  4. HTB Coupling: For applications demanding high torque density and efficiency, the HTB Coupling series is available for quote at Shafttech. Trust us to deliver quality solutions that match the demands of your machinery.
  5. DCB-GS Coupling Series: Shafttech proudly supplies the DCB-GS Coupling Series. Enhance your power transmission systems with this innovative coupling, available for dispatch.

Replacement Parts for Renold Couplings:

Shafttech doesn’t just stop at providing complete couplings; we also offer replacement parts such as rubber tubes and rubber elements. Ensuring the longevity and efficiency of your couplings, these replacement parts are ready for your convenient purchase.

Contact Shafttech for Your Coupling Needs:

For all your Renold Flexible Coupling requirements and replacement part needs, Shafttech is just a click away. Contact us today at sales@shafttech.com and we will be able to discuss your specific needs, or request a quote. Our team at Shafttech is dedicated to providing efficient solutions, ensuring your machinery operates at its best.

Trust Shafttech for top-notch quality, timely deliveries, and a comprehensive range of Renold Flexible Couplings and replacement parts. We are committed to being your reliable partner in power transmission solutions.

How to Troubleshoot Common Issues with Tyre Couplings

Tyre couplings play a vital role in power transmission systems, providing flexibility, vibration damping, and misalignment compensation. However, like any mechanical component, tyre couplings can experience issues that may affect their performance. Troubleshooting common problems promptly is crucial to ensure optimal operation and prevent potential equipment failures. In this article, we will discuss some common issues that may arise with tyre couplings and provide troubleshooting steps to help you identify and resolve them effectively.

1. Excessive Vibration: Excessive vibration is a common problem that can lead to increased wear, misalignment, and potential equipment damage. If you notice excessive vibration in your machinery, follow these troubleshooting steps:

a) Check for proper alignment: Misalignment between the driving and driven shafts can cause increased vibration. Verify that the shafts are aligned correctly according to the manufacturer’s specifications.

b) Inspect for damaged or worn-out tyres: Over time, the rubber tyres of the coupling can deteriorate or develop cracks. Inspect the tyres for any signs of damage or wear and replace them if necessary.

c) Verify proper installation: Ensure that the tyre coupling is installed correctly, with all bolts tightened to the recommended torque. Loose or improperly installed couplings can cause excessive vibration. Watch this video to see how simple it is to install a Fenaflex™ tyre coupling.

2. Misalignment Issues: Misalignment can occur due to various factors, including improper installation or wear over time. If you suspect misalignment, follow these troubleshooting steps:

a) Check alignment: Use precision alignment tools to assess the alignment between the driving and driven shafts. Make adjustments as necessary to achieve proper alignment within the manufacturer’s specifications.

b) Inspect for worn or damaged components: Misalignment can lead to accelerated wear on the coupling components. Inspect the coupling elements, such as the tyres and hubs, for signs of damage or wear. Replace any worn-out components. You can purchase just the worn out components with Shafttech, which would translate to cost savings for you.

 

3. Coupling Failure or Breakage: Although tyre couplings are designed to withstand heavy loads and compensate for misalignments, they can experience failures or breakages under certain circumstances. If you encounter coupling failure, follow these troubleshooting steps:

a) Assess load conditions: Evaluate the torque and load requirements of your machinery. If the coupling is subjected to loads beyond its capacity, it can result in failure. Consider upgrading to a higher-rated coupling if necessary.

b) Check for worn or damaged components: Inspect the coupling elements for signs of wear, cracking, or damage. Pay attention to the tyres, hubs, and bolts. Replace any damaged components to prevent coupling failure.

c) Preventive Maintenance: Establish a maintenance routine: Regularly inspect the coupling for signs of wear, misalignment, or damage. Schedule routine maintenance tasks such as visual inspections, bolt torque checks, and tyre condition assessments. Address any identified issues promptly.

 

Troubleshooting common issues with tyre couplings is essential for maintaining efficient and reliable power transmission systems. By promptly addressing excessive vibration, misalignment, coupling failure, and ensuring proper lubrication and maintenance, you can prolong the lifespan of the couplings and prevent unexpected equipment failures. If you encounter complex or persistent issues, do consult us at Shafttech as we have experienced professionals who can assist you in accurate troubleshooting and resolution. If you are looking to change to a tyre coupling, check out this article for the amazing benefits of a Fenner tyre coupling.

The Role of Tyre Couplings in Reducing Downtime and Increasing Efficiency in Malaysia Industries

In today’s fast-paced industrial landscape, minimizing downtime and maximizing operational efficiency are key priorities for businesses in Malaysia. Machinery breakdowns and maintenance issues can significantly impact productivity and profitability. That’s where tyre couplings play a crucial role. Tyre couplings provide essential benefits in power transmission systems, contributing to reduced downtime and increased efficiency in various industries across Malaysia. In this article, we will explore how tyre couplings can enhance operational performance and keep industries running smoothly.

1.Vibration Damping and Misalignment Compensation: Tyre couplings excel in dampening vibrations and compensating for misalignments between driving and driven machinery components. In Malaysian industries such as steel mills, power plants, palm oil mills, and HVAC (Heating, Ventilation, and Air Conditioning) systems, where heavy machinery and rotating equipment are prevalent, vibrations and misalignments can lead to premature wear, increased maintenance requirements, and potential breakdowns. Tyre couplings absorb shocks and vibrations, reducing stress on connected machinery and minimizing the risk of failure. By effectively compensating for misalignments, tyre couplings ensure smooth operation and extend the service life of equipment.

 

2. Enhanced Reliability and Reduced Maintenance: Machinery downtime for repairs and maintenance can be a significant cost and productivity drain. Tyre couplings contribute to increased reliability and reduced maintenance requirements, helping to keep industries in Malaysia running efficiently. With their flexibility and shock-absorbing properties, tyre couplings minimize stress on machinery components, reducing wear and tear. This results in fewer breakdowns and the need for less frequent maintenance. By choosing high-quality tyre couplings like the Fenner Tyre coupling, and ensuring proper alignment during installation, businesses can enhance the reliability of their equipment and significantly reduce unplanned downtime.

3. Torsional Flexibility and Power Transmission Efficiency: Tyre couplings offer excellent torsional flexibility, allowing for smooth power transmission even in applications with varying torque loads. This flexibility helps to dampen torsional vibrations, which can be detrimental to machinery performance. By effectively transmitting power and absorbing shocks, tyre couplings enable more efficient operation, contributing to improved productivity and energy efficiency in Malaysian industries. This is particularly relevant in sectors such as steel mills, power plants, palm oil mills, and HVAC systems, where continuous and reliable power transmission is crucial for uninterrupted production processes.

 

4. Adaptability to Harsh Environments: Many industries in Malaysia operate in challenging environments, including high temperatures, humidity, and exposure to chemicals or contaminants. Tyre couplings are designed to withstand such harsh conditions, offering excellent resistance to corrosion, moisture, and abrasive substances. This adaptability makes tyre couplings suitable for applications in steel mills, power plants, palm oil mills, and HVAC systems, where environmental factors can pose significant challenges. By selecting tyre couplings that are specifically engineered for demanding environments, businesses can ensure the longevity and reliable performance of their machinery, minimizing downtime associated with environmental factors.

5. Easy Installation and Maintenance: Tyre couplings are generally straightforward to install and maintain, contributing to time and cost savings for Malaysian industries. With their simple design and the availability of spacer type couplings, which provide flexibility in tight spaces, installation becomes more convenient. Additionally, many tyre couplings require minimal maintenance, with some models offering maintenance-free operation. This reduces the need for regular inspections and lubrication, saving valuable resources and further reducing downtime. Watch this video on how to easily install a Fenner tyre coupling.

Malaysia’s manufacturing sector plays a key role in the country’s economic transformation. In these heavy capital-intensive industries, where downtime and efficiency are critical concerns, tyre couplings play a significant role in reducing operational disruptions and increasing productivity. Their vibration damping, misalignment compensation, and torsional flexibility capabilities contribute to reliable and efficient power transmission. By selecting high-quality tyre couplings, industries in sectors such as steel mills, power plants, palm oil mills, and HVAC systems can experience reduced maintenance requirements, enhanced equipment reliability, and improved energy efficiency. Moreover, the adaptability of tyre couplings to harsh environments ensures their longevity and effectiveness across various applications in Malaysia. When it comes to maintaining operational performance and meeting production targets, the implementation of tyre couplings would prove to be a valuable investment for your industry.

Design Considerations for Selecting the Right Tyre Coupling for Your Machinery

When it comes to power transmission systems, selecting the right coupling is crucial for ensuring efficient and reliable machinery operation. Tyre couplings, otherwise known as tire couplings, offer unique advantages in compensating for misalignments, dampening vibrations, and transmitting torque. However, choosing the right tyre coupling requires careful consideration of various design factors. In this article, we will explore the key design considerations, including misalignment compensation capability, torque transmission capacity, size and space constraints, environmental factors, maintenance and inspection requirements, and cost and long-term value.

1. Misalignment Compensation Capability:
One of the primary functions of a tyre coupling is to compensate for misalignments between the driving and driven shafts. When evaluating tyre couplings, consider their ability to handle angular, parallel, and axial misalignments. Tyre couplings have a large misalignment capability. the Fenner’s Fenaflex Tyre Coupling can take up to 4° angular and 6mm parallel and 8mm axial misalignments. Look for flexible elements with sufficient torsional stiffness to absorb misalignments while maintaining the required torque transmission capacity. Proper misalignment compensation minimizes stress on connected machinery, reduces wear and tear, and extends the operational life of your equipment.

2. Torque Transmission Capacity:
Evaluate the torque requirements of your machinery and ensure that the selected tyre coupling can handle the expected torque load. Consider factors such as the power requirements, start-up torque, and any intermittent or peak torque conditions. Ensure that the coupling’s torque rating matches or exceeds your machinery’s requirements to ensure reliable and efficient power transmission. Fenner’s Fenaflex Tyre Coupling has a selection of torque capacity up to 12606Nm and bore diameters up to 190mm.

3. Size and Space Constraints:
Examine the available space for the coupling installation. Tyre couplings come in various sizes and configurations. Ensure that the selected coupling can be accommodated within the available space without interfering with other components or creating installation challenges. Consider factors such as the coupling’s overall dimensions, flange sizes, and shaft bore sizes to ensure a proper fit within your machinery. In general, the flanges are available in either F and H configurations for taper-lock fitting, or B configuraiton for pilot bore flanges. F configuration is where the taper lock bush is fitted from inside of the coupling, whereas H is from the outside. Depending on the space constraints, there can be different combinations such as F/F, F/H, F/B, H/B.

Image 1: [Left] F/F type configuration. [Middle] H/H type configuration. [Right] B/B tye configuration.

Fenner offers spacer type tyre couplings that are specifically designed for applications with larger space required between the drive (motor) and driven (application). These spacer couplings provide an extended distance between shaft ends, allowing for more flexibility in installation. At Shafttech, we keep stock for Fenner spacer type tyre couplings, ensuring quick availability and delivery for your specific space requirements. By choosing a spacer type coupling, you can optimize the use of available space and ensure a proper fit within your machinery.

Image 2: Illustration of Fenner spacer type tyre coupling.

1. Environmental Factors:
Assess the environmental conditions in which the machinery will operate. Consider factors such as temperature variations, exposure to moisture or chemicals, and potential contaminants. Choose a tyre coupling that is designed to withstand the specific environmental conditions of your application. This may include selecting couplings with protective coatings, corrosion-resistant materials, or enhanced sealing mechanisms for optimal performance and longevity.

In certain applications, such as those with a risk of fire or the presence of static electricity, Fenner Brand Tyre Couplings offer Fire Resistant Anti Static (FRAS) options. These FRAS couplings provide an extra layer of protection against fire hazards and static electricity. At Shafttech, we maintain stock of Fenner FRAS tyre couplings, enabling you to meet your environmental requirements promptly and efficiently.

2. Maintenance and Inspection Requirements:
Consider the maintenance and inspection requirements of the selected tyre coupling. Some couplings may require periodic lubrication, while others may offer maintenance-free operation. You can check out Fenner’s Fenaflex Tyre Coupling as it is lubrication-free. Additionally, consider the ease of inspection and the availability of spare parts when evaluating different tyre coupling options.

3. Cost and Long-Term Value:
Evaluate the initial cost of the tyre coupling, but also consider its long-term value. A higher-quality coupling may have a higher upfront cost but can provide significant cost savings in terms of reduced maintenance, longer service life, and improved machinery performance. For example, a pin and bush coupling may be economical, but the lifespan is considerably shorter and requires replacement of the entire coupling. Whereas for a tyre coupling, you only need to replace the tyre of the coupling while the flanges can last more than 10 years with proper maintenance. This makes tyre coupling more desirable in most cases. It is essential to strike a balance between the initial investment and the long-term benefits to achieve the best value for your machinery. Watch this video on how simple it is to install a Fenaflex™ tyre coupling.

Selecting the right tyre coupling for your machinery involves careful consideration of design factors such as misalignment compensation capability, torque transmission capacity, size and space constraints, environmental factors, maintenance and inspection requirements, and cost and long-term value. By thoroughly evaluating these design considerations and taking advantage of Fenner’s spacer type tyre couplings for space constraints and Fire Resistant Anti Static (FRAS) options for challenging environmental conditions, you can ensure the optimal performance, reliability, and longevity of your machinery’s power transmission system.

Feel free to consult Shafttech to find the perfect tyre coupling that meets the specific requirements of your application. We are official partner for Fenner (UK). With our stock availability and expertise, we can assist you in making the right choice and ensuring the reliable and efficient operation of your machinery.

If you want to learn more about the types of coupling to use, watch this video where we invited an expert from Fenner to discuss how to select the right kind of coupling for different applications.

Tyre Coupling: The Benefits of Choosing Fenner Brand Fenaflex™ Tyre Couplings for Your Application

When it comes to power transmission, selecting the right coupling for your application is crucial for ensuring smooth and efficient machinery operation. Among the various coupling types available, Fenner Brand Tyre Couplings stand out as a reliable and superior choice. In this article, we will explore the exceptional benefits of choosing Fenner Brand Tyre Couplings for your specific application.

The Advantages of Fenner Brand Tyre Couplings:

Fenner has been a leading name in power transmission for over 150 years. Fenner’s Tyre Coupling is known as Fenaflex™. Fenaflex™ offer a wide range of advantages that make them a preferred choice in industrial applications. Here are the key benefits of choosing Fenaflex™:

    1. Unmatched Quality and Durability: Fenner is renowned for manufacturing high-quality and long-lasting products. Fenaflex™ couplings are engineered with precision using top-grade materials, ensuring exceptional durability and longevity. Fenaflex™ tyres are available in natural rubber compounds for use in ambient temperatures between –50°C and +50°C. The tyres are also available in FRAS (Fire Resistant Anti Static) construction that are ATEX approved for potentially explosive atmospheres. With Fenner, you can trust that your coupling will withstand the rigors of demanding industrial environments.
  2. Excellent Misalignment Compensation: The special design of Fenaflex™ couplings allow them to excel at compensating for large misalignments between the driving and driven shafts. This flexibility minimizes stress on the connected machinery, reducing wear and tear and extending the operational life of your equipment. By absorbing misalignments, Fenner couplings ensure reliable power transmission and enhance overall system reliability.
  3. Superior Vibration Dampening: The rubber or polyurethane element in Fenaflex™ couplings acts as a torsional spring, effectively dampening shocks and vibrations during machinery operation. This feature helps minimize noise levels, improve operator comfort, and enhance the performance of your connected equipment. Fenaflex™ couplings ensure a smooth and quiet operation, contributing to a safer and more productive work environment.
  4. High Torque Transmission: Fenaflex™ Couplings are designed to handle high torque loads efficiently. Their robust construction and flexible element enable them to transmit power reliably, even in heavy-duty applications. On top of that, the internal load carrying cords are wound in both directions, allowing forward and reverse drives. With this coupling, you can be confident in their ability to handle demanding torque requirements while maintaining their exceptional flexibility and reliability.
  5. Easy installation and Fuss-free replacement: The Fenaflex™ tyre coupling is one of the easiest coupling to install and maintain. Unlike many other couplings, the Fenaflex™ coupling takes only minutes for replacement as you only need to replace the tyre element! This replacement requires neither special tools nor skilled labour. This simple time-saving installation also ensures that motor and machine remain undisturbed whilst tyre is changed. Watch this video to see how simple it is to install a Fenaflex™ tyre coupling.
  6. Maintenance-Free Operation: Fenaflex™ Couplings are lubrication-free. Their superior design and use of high-quality materials ensure long-lasting performance with minimal maintenance requirements.

 

In addition to the remarkable benefits of Fenner Brand Tyre Couplings, it’s important to note that at Shafttech, we take pride in keeping a comprehensive stock of Fenner couplings readily available. As a trusted distributor, we understand the importance of prompt access to high-quality products for our customers’ convenience. Whether you have specific inquiries or are ready to make a purchase, our team is dedicated to providing exceptional customer service. Don’t hesitate to contact us to inquire about Fenaflex™ Tyre Couplings or to place an order. We are here to assist you in finding the perfect coupling solution for your application.

So many couplings, how do you choose? How do we balance our torque requirements vs bore sizes vs material required?

Every other day, we get questions such as:

  1. What’s the difference between a set screw and clamp type coupling?
  2. Can I replace my coupling with a different type of coupling?
  3. The coupling you offered looks different from mine, are they equivalent?
  4. Do you have stainless steel couplings?
  5. The regular coupling I’m using spoils very frequently, can you suggest a better one?
  6. I’ve only heard about Oldham couplings. What’s the difference between Oldham couplings and other couplings?

In today’s article, we will be addressing these questions. Specifically, we will be talking about couplings that allows for bore hole sizes up to 70mm shaft. These couplings are mostly used in automation industries, so if you are in the semiconductor, automation, electronics, medical, OEM, machine making sector, this is for you.

 

Here we present, the mother of coupling tables.

You do not have to flip through catalogues to make comparisons, because we have done the legwork for you.

Let’s do a walk-through with reference to the coupling table to answer all of above questions.

  1. Can I replace my coupling with a different type of coupling?Depends! Chances are, you can. For example, you are using a curved jaw coupling of shaft size 25mm, and you are looking for alternatives. Simply do these checks according to the table- Does your machine vibrate? Is your environment oily? Does it pass through electricity? Is it running under intense temperatures? If the answers to all of that are no, the comparison table shows that you may replace it with a Disc or Oldham coupling, which might be even more suitable for your application if you are experiencing larger misalignments. Of course, be sure to check the catalogues to compare the other technical features such as rotational speed, torsional stiffness etc. You can find these catalogues on our site for easy reference.
  2. What’s the difference between a setscrew and a clamp-type coupling?Setscrew couplings come with a recessed socket screw, which goes perpendicular to the shaft. To install a setscrew coupling, allow the coupling to slide on the shaft and at a suitable length, then tighten the screws. To achieve the best hold, the shaft material should be softer than the screw to allow the screws to dig into the shaft and resist axial loads and torsional force. Most of the time, keyways are machined into the couplings to create a better hold. Clamp-type couplings use socket head screws that are recessed into the coupling to create compressions on the shaft when the screws are tightened. This makes removal and re-installation easier when adjustments are needed, because clamp-type couplings do not dig into the shafts, resulting in less damage. Shaft material is less important in clamp-type couplings as compared to set-screw couplings, and keyways are not usually needed as the force holding the shaft’s more uniform. Depending on coupling sizes, clamping screws typically have twice as much holding power compared to setscrew couplings.
  3. The coupling you offered looks different from mine, are they equivalent?As seen from the table above, couplings are versatile and can take many forms. Even similar type of couplings (i.e Disc couplings, Curved Jaw couplings, Parallel couplings) come in different sizes and corresponding length! If we are offering an equivalent, it is likely because the couplings you are using is obsolete, or that we can a faster lead time equivalent or a more cost-effective solution for you! As long as the requirements meet your request, it is okay to change.
  4. Do you have stainless steel couplings?Yes, we do! The summary table shows the types of couplings with stainless steel options. Or you can click here and filter for ‘Stainless steel’ to search for your exact coupling. In addition, there are couplings with oil resistance, electrical insulation properties. and those that withstand extreme temperatures like below freezing and above boiling point!
  5. The regular coupling I’m using spoils very frequently, can I replace with yours?Couplings do not typically spoil easily, so the first factor that we have to determine if it is undersized. Is the bore hole above the recommended size (reminder to take keyway height into consideration!), and does the torque and speed ratings meet your application requirements? It is wise to take into consideration the application’s running hours, and put in safety factors when sizing your coupling. Otherwise, you may also refer table above to consider the replacement of your coupling.
  6. I’ve only heard about Oldham couplings. What’s the difference between Oldham couplings and other couplings?This is especially easy to see with the summary table above. While the Oldham coupling’s a very popular and reliable coupling, it does have its limitations. The bore hole’s up to 25mm, and with a lesser rated torque compared to the other couplings. Here, we would like to further elaborate on some of the terms.
  • Excellent response refers to the moment of inertia at the time of application’s start and stop.
  • Torsional stiffness refers to the rigidity against the torsion on the coupling

At Shafttech, we are able to take on additional machining such as Bore Holes and Keyways should you require them. Our website also offers 3D drawings for our miniature couplings range

.

We hope that this is an informative read, and always feel free to check in with us if you have further queries!