55 x 75 x 13 Polyurethane Piston U-Cup w/POM Built in OD Back Up Metric

The MA28B is a single acting piston seal consisting of a polyurethane ring, wihch avoids high hydrodynamic pressure thanks to the notched design and built in thermoplastic POM backup ring. This seal has high extrusion resistance and offers good static sealing and dynamic sealing up to 6000psi. Specially engineered to reduce pressure spikes, and used in many long stroke cylinders, this seal provides a long service life. Material: PU/POM  Temp: -65 to 212°  Pressure: 6000psi