Wiper WPM 40x55x7/10 NBR+Stal

The WPM type wiper ring is designed to protect hydraulic cylinder glands from external contamination.
It prevents mud, water, and dirt from entering the system, protecting seals and the piston rod surface from accelerated wear.
Construction and operation:
The wiper is made of oil-resistant NBR rubber, set in a steel casing ensuring secure and durable seating in the housing.
The design is adapted for press-fit installation, ensuring strong retention even under intensive working conditions.
The flexible rubber lip closely adheres to the piston rod surface, effectively cleaning it of dirt and moisture during the cylinder's working motion.
Application:
hydraulic cylinder glands,
work mechanisms of construction and agricultural machinery,
systems exposed to mud, dust, and water.
Materials:
working section: NBR (nitrile rubber) – resistance to oils and greases,
casing: steel – provides rigidity and secure attachment.
Technical specification:
- internal diameter (d): 40 mm
- external diameter (D): 55 mm
- height/thickness (H): 7/10 mm
Dimensions in inches:
- 1.57 x 2.17 x 0.28/0.39 inches