Wiper WPM 15x21x3,5/5 NBR+Stal

The WPM 15x21x3,5/5 wiper ring is used to protect the glands of hydraulic cylinders against external contamination. It prevents mud, water and dirt from entering the system, protecting the seals and the piston rod surface against accelerated wear. Design and function: The wiper, made of oil-resistant NBR rubber mounted in a steel case, ensures a durable fit in the housing. The design, intended for press-fitting into the housing, guarantees secure retention even during intensive operation. The flexible rubber lip fits closely against the piston rod surface, effectively removing contamination during the working stroke of the cylinder. Application: - hydraulic cylinder glands - working mechanisms of construction and agricultural machinery - systems exposed to mud, dust and water Materials: - working part: NBR (nitrile rubber) - case: steel Technical data: - inner diameter (d): 15 mm - outer diameter (D): 21 mm - height / thickness (H): 3,5/5 mm Dimensions in inches (d × D × H): - 0.59” × 0.83” × 0.14”/0.20”