These wear rings reduce radial movement, therefore helping to extend seal life. The exceptional physical properties make them suitable for use on rams or pistons in reciprocating and rotary applications.Various designs and materials are available including the WR, P9KL, R9KL, WRTP, WRTR, WRUP, WRUR, which address specific needs and applications in the market.

The easy-to-use split 18K design is manufactured from a glass fiber-reinforced thermoplastic polyimide resin (heat stabilized nylon). These bearings reduce radial movement, helping to extend seal life. The easy-to-use split 19K is manufactured from a glass fiber-reinforced thermoplastic polyimide resin (heat stabilized nylon). These bearings reduce radial movement to help extend seal life. 

Chesterton 16K/17K non-metallic wear rings reduce the impact of transverse force on your cylinders to achieve improved service life and reliability.The split, continuous coil designs are made from a combination of composite polyester resin reinforced with synthetic fibers specifically designed to support heavy loads. The exceptional physical properties and built-in lubricants of these wear rings make them suitable for use on rams or pistons in reciprocating applications.

Chesterton 9K Backup Ring is created via a machining process which enables ring production of all sizes, made to equipment dimensions. The rings are available in various extrusion-resistant materials and are located on the backside or low-pressure side of the sealing element they are supporting.