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Title:
組合せ円筒コロ軸受
Document Type and Number:
Japanese Patent JP6662999
Kind Code:
B2
Abstract:
A combined cylindrical roller bearing (1) is provided with first and second angular cylindrical roller bearings (10, 20) coaxially disposed in parallel, and a shim plate (3) sandwiched between first and second inner races (12, 22) of these angular cylindrical roller bearings. A gap between the first and second inner races (12, 22) is adjusted by the shim plate (3). First and second cylindrical rollers (14, 24) do not have the relative positions thereof restricted in the direction of the bearing center axis line (1a) thereof. Pressurization of the first and second angular cylindrical roller bearings (10, 20) can be managed appropriately by the shim plate (3). Different from double-row angular cylindrical roller bearings, it is not required to raise the precision in processing and assembly of the inner and outer races to the tolerance level of cylindrical rollers, processing and assembly can be made easy, and cost can be reduced.

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Inventors:
Tsuguhisa Hagiwara
Yoshizawa Nakazawa
Kazuhisa Taguchi
Kazuhiko Kurashina
Application Number:
JP2018507920A
Publication Date:
March 11, 2020
Filing Date:
March 30, 2016
Export Citation:
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Assignee:
Harmonic Drive Systems Inc.
International Classes:
F16C19/38; F16C25/08
Domestic Patent References:
JP20101924A
JP2000314418A
JP200889124A
JP639719A
JP200460758A
JP2006214545A
JP544720A
Foreign References:
US3967867
Attorney, Agent or Firm:
Shiro Yokozawa