Title:
ROLLING BEARING UNIT FOR WHEEL SUPPORT
Document Type and Number:
Japanese Patent JP2017172673
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To realize a structure capable of easily securing sealing performance of a seal device for closing an axial outer end opening part of an internal space in which a plurality of rolling bodies is arranged, and also making seal torque of the seal device small.SOLUTION: A seal device 4 for closing an axial inner end opening part of an internal space 13 comprises a magnetic fluid seal 15. Like a contact type seal ring, the magnetic fluid seal 15 can seal a seal part over the whole circumference without any gap, and also can make seal torque extremely small compared to the contact type seal ring.SELECTED DRAWING: Figure 1
Inventors:
SUZUKI AYAMI
Application Number:
JP2016058485A
Publication Date:
September 28, 2017
Filing Date:
March 23, 2016
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C33/82; F16C19/18; F16C33/78; F16J15/43
Attorney, Agent or Firm:
Kiwa Patent Office