Wiper WPM 22x30x5/7 NBR+Stal

The WPM wiper ring is a component used to protect the glands of hydraulic cylinders against external contamination. It effectively prevents mud, water and dirt from entering the system, which is important for protecting the seals and the piston rod surface. Design and function: The wiper is made of oil-resistant NBR rubber mounted in a steel case, which ensures a secure and durable fit in the housing. The design allows press-fitting into the housing, which is key to strong retention under intensive operating conditions. The flexible rubber lip fits against the piston rod surface, effectively eliminating dirt and moisture during the working stroke. Application: - hydraulic cylinder glands, - working mechanisms of construction and agricultural machinery, - systems exposed to mud, dust and water. Materials: - working part: NBR (nitrile rubber) – resistant to oils and greases, - case: steel – provides rigidity and secure fixing. Technical dimensions: - inner diameter (d): 22 mm, - outer diameter (D): 30 mm, - height / thickness (H): 5/7 mm. Conversion to inches: - 0,87" × 1,18" × 0,20/0,28".