Title:
ELASTIC BOOT FOR SEAL
Document Type and Number:
Japanese Patent JP2021148218
Kind Code:
A
Abstract:
To provide an elastic boot for a seal capable of easily and accurately grasping whether or not predetermined tightening force is applied to a cylindrical part.SOLUTION: A boot 20, in which a boot band 30 that applies tightening force in a diameter reduction direction to a large-diameter cylindrical part 21 is attached to the outer peripheral surface of the large-diameter cylindrical part 21, has a division part 25 that divides an axially outside end part 21a of the large-diameter cylindrical part 21 into an inside piece 26 and an outside piece 27 located radially outside the inside piece 26. As the tightening force applied to the large-diameter cylindrical part 21 increases, the inside piece 26 and the outside piece 27 are relatively displaced so that the opening of the division part 25 expands in a radial direction.SELECTED DRAWING: Figure 3
Inventors:
WATANABE RYUTA
Application Number:
JP2020049482A
Publication Date:
September 27, 2021
Filing Date:
March 19, 2020
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16D3/84; F16J3/04; F16J15/52
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Tsuyoshi Kumano