SKF PWY 22X30X5X7.8 Polyurethane snap-in wiper seal with a single lip, an additional static lip and radial ridges on the inside diameter

Hydraulic wiper seals prevent contaminants from entering a cylinder assembly and hydraulic system. PWY seals are polyurethane snap-in wiper seals. They have a single-lip design, with an additional outwardly directed sealing lip to provide better static sealing ability in the housing. Radial ridges prevent the wiper seal from getting a distorted shape in the housing which could lead to reduced wiping efficiency.