Title:
車輪支持用転がり軸受ユニット
Document Type and Number:
Japanese Patent JP6451107
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a wheel support rolling bearing unit which hardly causes the come-off of a cap even if a bearing internal space is brought into a high-temperature state, and internal pressure is raised.SOLUTION: In a cap 17b which is pressure-inserted into an internal end opening part of an outer ring 19, a pressure-insertion part 28 of the opening part has a bottom plate part 29a which is bent from an end part of the inside of an axial direction (right hand in Fig.) at a substantially-right angle, the surface pressure of the pressure-insertion part 28 at an internal end side is raised by the rigidity of the bottom plate part 29a, and a fitting force of the cap 17b is improved. The pressure-insertion part 28 also has a circular part 29b which is bent from an end side of the pressure-insertion part at the outside of the axial direction (left hand in Fig.) at a substantially-right angle, the surface pressure of the pressure-insertion part 28 at an external end side is raised, and the fitting force of the cap 17b is improved. Furthermore, an inside-diameter side end part of the circular part 29b is made to approximate an external peripheral face of an inner ring 23, and a labyrinth part is formed.SELECTED DRAWING: Figure 1
Inventors:
Yoshio Kamiya
Application Number:
JP2014140363A
Publication Date:
January 16, 2019
Filing Date:
July 08, 2014
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
F16C33/76; B60B35/02; F16C19/18; F16C33/78; F16C33/80; F16J13/14; F16J15/447
Domestic Patent References:
| JP2000198304A | ||||
| JP2008164083A | ||||
| JP201466342A | ||||
| JP2010230080A | ||||
| JP2005133953A | ||||
| JP744805U |
Foreign References:
| US5997182 | ||||
| US5816711 |
Attorney, Agent or Firm:
Patent business corporation glory patent office