Title:
FOREIGN OBJECT ENTRY PREVENTION STRUCTURE OF BEARING
Document Type and Number:
Japanese Patent JP2019143766
Kind Code:
A
Abstract:
To provide a foreign object entry prevention structure of a bearing which can prevent entry of a foreign object into the bearing by easy processing.SOLUTION: A foreign object entry prevention structure 12 prevents entry of a foreign object into a bearing. A collection part 13 collects the foreign object generated through wear of a contact surface 9a between the bearing and a rear lid 9 and is partially disposed in an area A where a contact surface pressure of a rear lid 9 side contact surface 9a becomes higher. The collection part 13 is disposed at a spacing from the contact surface 9a of the rear lid 9 in a circumferential direction. Since the collection part 13 is formed in the area A where the contact surface pressure of the rear lid 9 side contact surface 9a becomes higher as a partial recessed part, a reduction of a contact area of the rear lid 9 side contact surface 9a is inhibited to inhibit an increase of the contact surface pressure of the rear lid 9 side contact surface 9a. Even if the foreign object is generated through the wear of the contact surface 9a, the foreign object is collected by a recessed part 13a of the collection part 13 and inhibited from entering into the bearing.SELECTED DRAWING: Figure 2
Inventors:
IKOMA KAZUKI
OKAMURA YOSHIAKI
OKAMURA YOSHIAKI
Application Number:
JP2018030710A
Publication Date:
August 29, 2019
Filing Date:
February 23, 2018
Export Citation:
Assignee:
RAILWAY TECHNICAL RES INST
International Classes:
F16C33/76; F16C19/38; F16C33/58; F16C33/64
Attorney, Agent or Firm:
Taketo Okuma