Product Overview

Apex Coupling manufactures high-performance PU coupling spiders for flexible jaw couplings used in industrial power transmission systems. Made from polyurethane (TPU/CPU), these elastic coupling inserts provide cushioning, vibration damping and flexible torque transmission between connected shafts.

This 98 Shore A polyurethane coupling spider is designed for GR star-type elastic couplings and selected Rotex-style jaw coupling configurations. Its elastic properties help absorb operating shocks and reduce vibration during power transmission, helping protect connected mechanical components under suitable operating conditions.

With a range of sizes available, Apex Coupling supports different coupling configurations and customized bore requirements. These PU jaw coupling inserts are suitable for machinery manufacturers, equipment maintenance companies and industrial distributors looking for durable replacement coupling elements.

Key Features of PU Coupling Spider

1. 98 Shore A Polyurethane Material

Manufactured from TPU or CPU polyurethane, the coupling spider combines elasticity with mechanical strength. The specified hardness is 98 Shore A, providing a firm yet flexible connection between coupling hubs.

2. Shock Absorption and Vibration Damping

The elastic spider is positioned between the two coupling hubs. It helps absorb torsional shocks and reduce vibration transmitted through the drive system.

3. Wear-Resistant Performance

The supplied specification lists an Akron abrasion loss of less than 0.05 cm² per 1.61 km. This indicates a focus on abrasion resistance under the specified test conditions.

4. Multiple Coupling Sizes

Available sizes cover a broad range of GR and Rotex-style coupling dimensions, from smaller coupling configurations to larger industrial applications.

5. Custom Manufacturing

Apex Coupling supports OEM and ODM orders. Customized dimensions and bore configurations can be discussed according to your coupling design and application requirements.

6. Flexible Industrial Applications

The PU coupling spider is suitable for flexible jaw coupling systems used in industrial machinery and manufacturing equipment.

Technical Specifications

Note: Torque, bore diameter and maximum speed are model-dependent. The 500 N·m torque, 30 mm bore and 2000 RPM values are listed attributes for a specified configuration, not universal ratings for every size. Please confirm the selected model before ordering.

Available Models and Sizes

The following model references are listed in the supplied product information:

D values are reproduced from the supplied model list. Please confirm the exact dimensional reference and spider profile before ordering. These model references are used for size identification and do not by themselves establish OEM compatibility.

Applications of Polyurethane Coupling Spiders

PU coupling spiders are widely used in flexible jaw coupling systems for mechanical power transmission.

Typical applications include:

• Industrial motors and gear motors

• Pumps and pumping systems

• Compressors and blowers

• Conveyors and material handling equipment

• Packaging and processing machinery

• General manufacturing equipment

• Industrial automation systems

The appropriate spider material and size should be selected according to torque, rotational speed, temperature, vibration and operating conditions.

How to Choose the Right PU Coupling Spider

Selecting the correct coupling spider is essential for proper coupling performance and service life.

1. Confirm the coupling model

Check the coupling series and size, such as the required GR or Rotex-style configuration.

2. Check the dimensions

Confirm the outer diameter, inner profile, overall thickness and the shape of the spider lobes. Do not select a replacement based only on the model name.

3. Select the correct hardness

This product is specified at 98 Shore A. Confirm that this hardness meets the requirements of your original coupling design.

4. Check torque and speed

Compare the actual operating torque and rotational speed with the allowable ratings for the selected spider and coupling assembly.

5. Consider operating conditions

Temperature, oil exposure, chemicals, vibration and shock loads can influence polyurethane performance. Confirm material suitability for the actual working environment.

Why Choose Apex Coupling?

Apex Coupling supplies flexible coupling components and industrial power transmission products to international B2B customers.

• Manufacturer supply: Direct manufacturing support for coupling spiders and related components.

• Polyurethane options: TPU and CPU material options according to product requirements.

• Multiple sizes: Various coupling spider dimensions for different applications.

• OEM and ODM: Customized dimensions and product specifications.

• Quality inspection: Product inspection reports available.

• Export service: Support for industrial distributors, machinery manufacturers and overseas buyers.

Frequently Asked Questions

What is a PU coupling spider?

A PU coupling spider is an elastic polyurethane insert installed between the two hubs of a jaw coupling. It transmits torque while helping absorb shocks and reduce vibration.

What is the hardness of this coupling spider?

The specified hardness is 98 Shore A. This provides a relatively firm polyurethane element for flexible jaw coupling applications.

What is the difference between TPU and CPU coupling spiders?

TPU and CPU are different polyurethane material types. Their mechanical properties and performance can vary depending on formulation and manufacturing process. The suitable material should be selected according to the application and required performance.

Can this PU coupling spider replace a Rotex coupling spider?

Selected sizes may be suitable for Rotex-style coupling configurations. However, replacement compatibility must be confirmed by comparing the complete dimensions, lobe profile, hardness and operating ratings. Model names alone are not sufficient to guarantee interchangeability.

Can Apex Coupling manufacture custom coupling spiders?

Yes. Apex Coupling supports OEM and ODM customization. Please provide the original spider sample, technical drawing or coupling model and dimensions for evaluation.

Request a Quote for PU Coupling Spiders

Looking for a reliable PU coupling spider for your GR or flexible jaw coupling?

Apex Coupling supplies polyurethane coupling inserts in multiple sizes, with OEM and ODM customization available.

Send us your coupling model, dimensions, material requirements and order quantity for a quotation.

Website: https://www.apexcoupling.com/

Email: ella@apexcoupling.com

WhatsApp: +86 13437856962