Star-Type Polyurethane Spider Inserts – High-Durability & Long-Service Performance
Polyurethane Spider Coupling Inserts are precision-engineered components designed for industrial power transmission systems that require high durability, flexibility, and superior wear resistance. Manufactured from high-grade polyurethane (PU), these inserts deliver extended service life, consistent performance, and reduced maintenance compared to conventional rubber alternatives.
Thanks to their spider (jaw) profile, these coupling inserts enable efficient high-torque transmission in compact spaces while maximizing vibration damping and shock absorption. As a result, polyurethane spider inserts are widely used in applications searching for jaw coupling spiders, PU spider elements, flexible coupling spiders, and industrial coupling inserts.
Advantages of Polyurethane Spider Coupling Inserts
- Excellent abrasion and wear resistance
- High resistance to oils, greases, and many industrial chemicals
- Silent operation with effective vibration and noise reduction
- Long service life with low maintenance requirements
- High load-bearing capacity for demanding applications
- Resistant to tearing, deformation, and permanent set
These features make polyurethane spider inserts a reliable solution for conveyor systems, machine drive mechanisms, industrial manufacturing lines, automation systems, and custom-built machinery.
Standard Sizes of Polyurethane Spider Inserts
Our standard production sizes include:
Dimensions shown as: Inner Diameter / Outer Diameter × Thickness (mm)
- Ø 22 / 65 × 17
- Ø 24 / 80 × 20
- Ø 44 / 95 × 23
- Ø 45 / 110 × 25
- Ø 49 / 125 × 30
- Ø 60 / 140 × 33
- Ø 67 / 160 × 42
- Ø 78 / 180 × 44
- Ø 88 / 200 × 45
- Ø 113 / 225 × 46
- Ø 142 / 250 × 44
Custom-size polyurethane spider coupling inserts can also be manufactured upon request.
Why Choose Polyurethane Spider Coupling Inserts?
Compared to rubber coupling elements, polyurethane spider inserts offer superior durability, higher torque capacity, and better form stability under continuous operation. Their combination of flexibility and mechanical strength ensures smooth, uninterrupted performance in high-load industrial environments.
Available in different Shore hardness grades (such as 92 Shore A and 98 Shore A), these inserts can be selected according to torque requirements and operating conditions. Pricing may vary based on size, hardness, and application. For detailed technical information or a customized quotation, please contact us.