Patent Number: 6,612,582

Title: Dust lip structure of oil seal for oscillation

Abstract: In a dust lip structure of an oil seal 20 for oscillation, a thickness of the front end portion of the dust lip 40 is substantially two thirds of an interference A of the first dust lip portion 41 with respect to the rod 13, and an outer diameter of the dust lip 40 is set to be in parallel to each of a front end side taper-like inner diameter portion 43B from the first dust lip portion 41 to a root portion of the second dust lip portion 42 and a base end side taper-like inner diameter portion 44B from the second dust lip portion 42 to the base end portion.

Inventors: Hosoda; Hironobu (Saitama, JP)

Assignee: Showa Corporation

International Classification: F16J 15/32 (20060101); B60T 011/236 ()

Expiration Date: 09/02/2020