Product Description

Transmission Asserories

Coupings

Roller Chain Couplings

 

FEATURES
Manufactured according to relevant industrial standards 
Available in many sizes, ratings, and product types, including flexible shaft couplings and OK couplings 
Fabricated from a variety of high-grade steel 

BENEFITS
Several surface treatment processes protect against corrosion  
Customized products are available 
Large couplings withstand very high torque 
Flexible shaft couplings compensate for shaft misalignment

With more than 10 years in the power transmission industry, we are committed to the ongoing development and advancement of our products and services. Our focus on innovation is reflected in our continuously upgraded and modernized facilities, which allow us to meet the evolving needs of the market. Our state-of-the-art power transmission technology includes a selection of roller chain couplings that are ideal for a broad range of coupling applications. Our chain couplings are engineered to excel in any application you need, with exceptional flexibility, strength, and a surprisingly simple assembly.

ABOUT ROLLER CHAIN COUPLINGS
A roller chain coupling is a mechanical device composed of a double-strand roller chain and 2 modified sprockets. The design is simple and highly effective, despite its small size, and is composed of a robust chain and specially cut, hardened-tooth sprockets that allow a high amount of torque to be transmitted.

BENEFITS OF GIL'S ROLLER CHAIN COUPLINGS
COMPACT AND POWERFUL
In a roller chain coupling, torque is distributed across the combined mating surfaces of each of the chain and sprocket pitches, which allows the coupling to handle a high amount of torque for its size. The chain connects closely with the sprockets, for a highly compact and lightweight coupling that transmits torque with the utmost efficiency.

SAFE AND SMART
Our compact roller chain couplings are housed in an aluminum casing that clamps to the sprocket hubs and rotates with the body of the coupling without the need for bolts or other projections. The coupling chain itself is easy to install and remove using a single connecting pin, so you save on installation labor and downtime.

EASY ALIGNMENT
When working with shafts in a drive, traditional rigid couplings require extremely precise alignment between the coupled shafts. Roller chain couplings introduce much-needed flexibility with clearances both in the chain and between the chain and sprocket teeth. With this added mobility, even with minor misalignment, chain couplings can operate in a smooth and responsive manner, reducing the potential for overheating and wear common in more rigid coupling designs. The operation of roller chain couplings is less affected by unavoidable shaft expansion and contraction. The flexibility and easy alignment of the drive shafts, when using chain couplings, will save time and money on equipment repairs and replacements.

HOW TO INSTALL A ROLLER CHAIN COUPLING
Install oil seal to each hub
Adjust the alignment of the shafts and coupling components
Adjust the distance between the sprocket faces
Thoroughly lubricate the coupling chain
Install chain to couplings using a single-pin connecting link
Firmly close and fasten the cover of the coupling (optional, depending on operating conditions)

CHOOSE GIL FOR YOUR POWER TRANSMISSION NEEDS
To ensure optimal operation of low- or medium-speed, high-torque transmission applications, install GIL's roller chain couplings. At GIL, we pride ourselves on providing the latest in power transmission technology. Our broad global presence allows us to serve customers almost anywhere in the world quickly and effectively.
 

Granville

Granville bearing manufacturer in the production of electric motor grade deep groove ball bearings, the company is committed to developing all kinds of precision radial ball bearings with an inner diameter of 2mm-100mm.

The factory covers an area of 58000 square meters, the company has advanced assembly lines and a perfect quality testing center. After more than 10 years of management and innovation, with more than 120 automatic production lines, various kinds of testing, and inspection instruments, with the annual production capacity of 160 million sets of reliable high precision quality bearings.
The comprehensive application of automation production lines is a premise to ensure product's stable quality, what's more, it is a mark that the enterprises improve to digital management modern high-tech manufacturer.

Seiko quality, the pursuit of excellence: the control and improvement of quality is the constant pursuit of Granville, in strict accordance with the system of the provisions of the quality of each process.
 

We strictly follow the core of quality management process control:

APQP: product quality advance plHangZhou
SPC: Statistical process control
MSA: Measurement system analysis
FMEA: Analysis of potential failure modes and consequences
PPAP: Production part approval procedure

In the factory testing laboratories, various bearing parts are examined in detail. The factory has its own professional bearing life tester, after bearing life and durability test, our bearings have the advantages of long service life, and high durability. We are keeping an introduction of the latest measurement and testing equipment. Quality procedures are based on extensive, repeatedly carried out product tests - both before inclusion in the range and after.

We manufacturing:

The Granville manufacturer takes her every effort in purchasing the most advanced bearing process equipment, automatic facilities are widely used in the factory and we keep investing to improve more.

Levels Applications Materials

We manufacture CHINAMFG bearings, the advantage in manufacturing electric motor quality deep groove ball bearings up to ABEC-3, Z3-V3, ABEC-5 Z4-V4 level; A reliable production resource of high-quality repair parts for the CHINAMFG operations of automotive and light truck manufacturers worldwide, over 1000 kits includes hub assemblies and 3 generations of wheel bearing designs; Granville foundry makes an extensive and full line of mounted bearing units and housings in industry-standard and custom configurations. Casting iron, ductile iron, stainless steel, and plastic materials are available.

Partnerships Reliable Supply-Chain:

Based on our experienced team and strict, effective supply chain management, Granville products deliver premium quality, and performance our customers have relied on for years. From a full range of bearings, mounted bearing units, power transmission products, and related markets around the world, we provide the industry's most comprehensive range of qualified products available today.

Advantage Manufacturing Processesand Quality Control:

01 Heat Treatment

02 Centerless Grinding Machine 11200 (most advanced)

03 Automatic Production Lines for Raceway

04 Automatic Production Lines for Raceway

05 Ultrasonic Cleaning of Rings

06 Automatic Assembly

07 Ultrasonic Cleaning of Bearings

08 Automatic Greasing, Seals Pressing

09 Measurement of Bearing Vibration (Acceleration)

10 Measurement of Bearing Vibration (Speed)

11 Laser Marking

12 Automatic Packing

 

Q&A

*Could you make a brief introduction to your all series of products?
Yes, we stock and sell factory-warrantied mechanical, electrical, and fluid-driven equipment such as bearings, belts, drives, motors, gears, couplings, clutches and brakes, linear motion, and hydraulics and pneumatics.

*How about your sales group?
At Granville, we understand a competent team makes your job easier, so we have established a group of employees who represent our resourcefulness and commitment to working hard to make sure your unique challenges are handled right the first time.

*What's your solutions for maximizing customers' benefits?
Our goal is to have your stock requirements on-hand when you need them. Through our storeroom surveys, in-depth communication, and usage analysis, we can reduce your organization's inventory cost, supply room costs, and turn-around time.

*What's your shipping document and documents of payment?
Our usual practice is FOB ZheJiang & T/T, and we could adjust them for your requirements.

*What's the most convenient way to get your free quotation?
Please contact Stacy with your requirements (or Copy the contents of the table and fill in it with your information)

RFQ for Free

Company Name:

Name: Mr./Mrs./Miss

Email:

Bearing No. :

Quantity:

More Details:

{Hi, this is Stacy, tailored solutions will be sent to you with your message 🙂

 

How does a flexible coupling deal with backlash and torsional stiffness?

A flexible coupling deals with backlash and torsional stiffness in the following ways:

• Backlash: Backlash refers to the play or clearance between mating teeth in mechanical systems. In certain couplings, such as gear couplings, some degree of backlash is unavoidable due to the space between the teeth. However, flexible couplings with elastomeric or beam-type elements typically have minimal to no backlash. The flexibility of these elements allows them to maintain continuous contact and transmit torque smoothly without any gaps or play between components.
• Torsional Stiffness: Torsional stiffness is the ability of a coupling to resist rotational deformation or twisting under torque. It is essential to have adequate torsional stiffness in some applications to ensure accurate motion transmission and responsiveness. Flexible couplings exhibit a balance between torsional stiffness and flexibility. While they allow for a degree of angular and parallel misalignment, they still possess sufficient torsional stiffness to transmit most of the torque efficiently. This characteristic helps maintain the precision of motion control systems and prevents power losses due to deformation.

The design and materials used in flexible couplings contribute to their ability to address both backlash and torsional stiffness effectively. Here are some key features:

• Elastomeric Elements: Couplings with elastomeric elements, such as rubber or polyurethane, provide excellent flexibility to absorb misalignments and dampen vibrations. They also exhibit minimal backlash as the elastomeric material maintains continuous contact between the coupling components.
• Beam-Type Couplings: Beam-type couplings use thin metal beams to transmit torque. These couplings offer high torsional stiffness while still accommodating misalignments. The beams can flex slightly under torque, absorbing shocks and compensating for misalignment without compromising torsional rigidity.
• Composite Couplings: Some flexible couplings use composite materials that combine the advantages of different materials to achieve specific performance characteristics. These composites can offer low backlash and precise torsional stiffness, making them suitable for demanding applications.
• High-Quality Manufacturing: The precision manufacturing of flexible couplings ensures that components fit together with minimal clearances, reducing backlash. Additionally, high-quality materials contribute to better torsional stiffness and overall performance.

Overall, flexible couplings strike a balance between flexibility to accommodate misalignments and sufficient torsional stiffness to transmit torque efficiently. By effectively addressing backlash and torsional stiffness, these couplings contribute to the smooth and reliable operation of various mechanical systems.

Can flexible couplings be used in the aerospace industry for critical applications?

Flexible couplings can be used in the aerospace industry for certain critical applications, but their usage is limited and carefully considered due to the stringent requirements and safety standards in the aerospace field. Here are some key points to consider:

• Specific Applications: In the aerospace industry, flexible couplings are primarily used in non-flight-critical systems or non-safety-critical applications. They are commonly found in auxiliary equipment, ground support systems, and non-flight propulsion systems.
• Weight and Space Constraints: Weight and space are crucial factors in aerospace applications. Flexible couplings must be lightweight and compact to minimize the impact on the overall weight and size of the aircraft or spacecraft.
• High Reliability Requirements: Aerospace systems demand high reliability and fault tolerance. Flexible couplings used in critical applications must meet stringent reliability standards and undergo rigorous testing and certification to ensure their performance under extreme conditions.
• Material Selection: Aerospace-grade materials are necessary to withstand the demanding environment of aerospace applications. These materials should have high strength-to-weight ratios, corrosion resistance, and excellent mechanical properties to handle the stresses and forces experienced during operation.
• Certifications: Flexible couplings used in the aerospace industry must adhere to specific certifications and standards, such as those set by organizations like the Federal Aviation Administration (FAA) in the United States or the European Union Aviation Safety Agency (EASA) in Europe.
• Redundancy and Safety Measures: In critical systems, redundancy and safety measures are paramount. Flexible couplings used in aerospace applications must be designed with redundancy features to ensure the system's continued functionality in the event of a failure.
• Temperature and Environmental Considerations: Aerospace systems experience a wide range of temperatures and environmental conditions. Flexible couplings must be able to operate reliably in extreme temperatures, high altitudes, and other challenging environments encountered during flight or space missions.

While flexible couplings have their place in certain aerospace applications, flight-critical and safety-critical systems typically rely on rigid, precision-engineered couplings. These rigid couplings offer higher levels of torque transmission and precision but require careful alignment and installation.

Ultimately, the selection of flexible couplings for aerospace applications must undergo a thorough engineering evaluation and be approved by the relevant regulatory authorities to ensure the highest level of safety and performance in critical aerospace systems.

What materials are commonly used in manufacturing flexible couplings?

Flexible couplings are manufactured using a variety of materials, each offering different properties and characteristics suited for specific applications. The choice of material depends on factors such as the application's requirements, environmental conditions, torque capacity, and desired flexibility. Here are some of the commonly used materials in manufacturing flexible couplings:

• Steel: Steel is a widely used material in flexible couplings due to its strength, durability, and excellent torque transmission capabilities. Steel couplings are suitable for heavy-duty industrial applications with high torque requirements and harsh operating conditions.
• Stainless Steel: Stainless steel is often used to manufacture flexible couplings in environments with high corrosion potential. Stainless steel couplings offer excellent resistance to rust and other corrosive elements, making them ideal for marine, food processing, and chemical industry applications.
• Aluminum: Aluminum couplings are lightweight, have low inertia, and provide excellent balance. They are commonly used in applications where reducing weight is critical, such as aerospace and robotics.
• Brass: Brass couplings are known for their electrical conductivity and are used in applications where electrical grounding or electrical isolation is required, such as in certain industrial machinery or electronics equipment.
• Cast Iron: Cast iron couplings offer good strength and durability and are often used in industrial applications where resistance to shock loads and vibrations is necessary.
• Plastic/Polymer: Some flexible couplings use high-performance polymers or plastics, such as polyurethane or nylon. These materials provide good flexibility, low friction, and resistance to chemicals. Plastic couplings are suitable for applications where corrosion resistance and lightweight are essential.
• Elastomers: Elastomers are used as the flexible elements in many flexible couplings. Materials like natural rubber, neoprene, or urethane are commonly used as elastomer spider elements, providing flexibility and vibration damping properties.

The selection of the coupling material depends on the specific needs of the application. For instance, high-performance and heavy-duty applications may require steel or stainless steel couplings for their robustness, while applications where weight reduction is crucial may benefit from aluminum or polymer couplings. Additionally, the choice of material is influenced by factors such as temperature range, chemical exposure, and electrical requirements in the application's operating environment.

Manufacturers typically provide material specifications for their couplings, helping users make informed decisions based on the specific demands of their applications.

editor by CX 2023-09-28