Wiper WPM 40x48x5/7 NBR+Stal

The WPM-type scraper ring is designed to protect gland seals in hydraulic cylinders from external contamination.
It effectively prevents mud, water, and dirt from entering the system, thus protecting the seals and the piston rod surface from accelerated wear.

Construction and operation:
The scraper is made of special NBR rubber, which is embedded in a steel casing ensuring durable and stable seating in the housing.
The construction is adapted for a press fit in the housing, ensuring a strong hold even in the most demanding conditions.
The flexible rubber lip adheres perfectly to the piston rod surface, effectively removing dirt and moisture during the cylinder's operating movement.

Application:
- hydraulic cylinder glands,
- working mechanisms of construction and agricultural machinery,
- systems exposed to mud, dust, and water.

Materials:
working part: NBR (nitrile rubber) – resistance to oils and greases,
casing: steel – provides rigidity and secure mounting.

Technical data:
- Internal diameter (d): 40 mm,
- External diameter (D): 48 mm,
- Height/thickness (H): 5/7 mm.

Size in inches (conversion):
1.57 x 1.89 x 0.2/0.28 inches.