Title:
PULLEY SUPPORT DOUBLE-ROW ANGULAR BALL BEARING
Document Type and Number:
Japanese Patent JP2016080150
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pulley support double-row angular ball bearing which can prevent the run-on of balls to a groove shoulder, can sufficiently secure an opening part between an outer ring and an inner ring at the insertion of the balls in a bearing assembling process, and can sufficiently secure a bearing space capacity for securing the rigidity of a cage.SOLUTION: A pulley support double-row angular ball bearing comprises: an outer ring 11 having an outer ring raceway groove 11a on an internal peripheral face; an inner ring 12 having an inner ring raceway groove 12a on an external peripheral face; a pair of cages 14 which rollably hold a plurality of balls 13 which are rollably arranged at a contact angle α between the outer ring raceway groove 11a and the inner ring raceway groove 12a which form a double-row. The outer ring has: contact-side groove shoulders 11b which comes into contact with the balls; and non-contact side groove shoulders 11c which do not come into contact with the balls. The inner ring has: contact-side groove shoulders 12b which are formed outside an axial direction rather than the double-row inner ring raceway groove, and comes into contact with the balls; and non-contact side groove shoulders 12c which are formed between the double-row inner ring raceway grooves, and do not come into contact with the balls. Heights H1, H3 of the contact-side groove shoulders 11b, 12b of the outer ring and the inner ring are set higher than heights H2, H4 of the non-contact side groove shoulders 11c, 12c.SELECTED DRAWING: Figure 1
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Inventors:
MATSUI HIROYUKI
YAMADA HIROYUKI
ITAGAKI KEITA
YAMADA HIROYUKI
ITAGAKI KEITA
Application Number:
JP2014215585A
Publication Date:
May 16, 2016
Filing Date:
October 22, 2014
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C19/18; F16C33/58; F16C43/04
Attorney, Agent or Firm:
Patent business corporation glory patent office
Yuriko Hamada
Kenji Kitajima
Hironori Honda
Yuriko Hamada
Kenji Kitajima
Hironori Honda