Wiper WPM 22x30x4/5 NBR+Stal

The WPM 22x30x4/5 NBR+Stal wiper ring is a specialised element designed to protect hydraulic systems against unwanted external contamination. Its main function is to prevent dirt, water and mud from penetrating into the system by effectively removing these contaminants from the piston rod surface. The whole structure is made of durable NBR rubber mounted in a steel case that guarantees proper fixing and stability. Thanks to this design, the ring performs its task excellently in all operating conditions, protecting other seals and surfaces against accelerated wear. Application: - Hydraulic cylinder glands - Working mechanisms of construction and agricultural machinery - Systems exposed to contact with mud, dust and water Materials: - Working part: NBR (nitrile rubber) - Case: steel Technical dimensions: - Inner diameter (d): 22 mm - Outer diameter (D): 30 mm - Height / thickness (H): 4/5 mm Size in inches: - 0.866 × 1.181 × 0.157/0.197 inches