PU vs NBR vs Hytrel Coupling Spider: Which Material Is Better?
Introduction
The elastomeric spider is one of the most important components in a flexible jaw coupling.
Choosing the correct material affects:
- Coupling flexibility
- Vibration damping
- Wear resistance
- Oil resistance
- Temperature resistance
- Service life
Three commonly considered materials are PU, NBR and Hytrel.
PU Coupling Spider
Polyurethane spiders are widely used for general industrial applications.
Advantages include:
- Good wear resistance
- Good elasticity
- Good mechanical strength
- Good vibration damping
PU can be a cost-effective choice for many standard applications.
NBR Coupling Spider
NBR is commonly considered when oil resistance is important.
It can be suitable for applications involving:
- Industrial oil
- Lubricants
- Hydraulic environments
- General machinery
Hytrel Coupling Spider
Hytrel is an engineering elastomer that provides a combination of:
- High mechanical strength
- Wear resistance
- Oil resistance
- High temperature performance
- Good flexibility
For demanding industrial environments, Hytrel can be a suitable choice.
PU vs NBR vs Hytrel
| Property | PU | NBR | Hytrel |
|---|---|---|---|
| Wear Resistance | Good | Good | Excellent |
| Oil Resistance | Depends on grade | Good | Good |
| Temperature Performance | Moderate | Moderate | High |
| Elasticity | Good | Good | Good |
| Industrial Applications | Excellent | Excellent | Excellent |
| High Temperature | Limited | Limited | Better |
| Demanding Applications | Good | Good | Excellent |
Which Coupling Spider Should You Choose?
Choose based on:
Temperature + Oil + Speed + Torque + Misalignment + Required Service Life
For high-temperature and demanding industrial applications, Hytrel is worth considering.
OEM Coupling Spider
Apex Coupling supplies:
PU Spider | NBR Spider | Hytrel Spider | OEM Custom Spider
Email: ella@apexcoupling.com
WhatsApp: +86 13437856962
Visit Hytrel coupling spider for more details.
Inquiry now:
ella@apexcoupling.com
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