Title:
MULTI-ROW BEARING AND BEARING UNIT
Document Type and Number:
WIPO Patent Application WO/2022/210734
Kind Code:
A1
Abstract:
Provided are: a multi-row bearing which makes it possible to measure an axial dimension of a portion between raceway grooves with high accuracy and ease in a short time, thereby allowing processing of a portion between the raceway grooves with high dimensional accuracy; and a bearing unit provided with the multi-row bearing. In a multi-row bearing (10), an inner ring raceway groove (31a) of a one axial end part is formed between groove shoulders on both axial sides of a groove bottom, and an inner ring raceway groove (31b) of an axial intermediate part is formed between the groove bottom and one of the groove shoulders on one axial side. Further, an outer ring raceway groove (21a) of another axial end part is formed between groove shoulders on both axial sides of a groove bottom, and an outer ring raceway groove (21b) of the axial intermediate part is formed between the groove bottom and one of the groove shoulders on one axial side.
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Inventors:
YABE TAKAYUKI (JP)
Application Number:
PCT/JP2022/015548
Publication Date:
October 06, 2022
Filing Date:
March 29, 2022
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16C19/18; F16H25/22; F16H25/24
Foreign References:
| JPS61166228U | 1986-10-15 | |||
| JP2001163231A | 2001-06-19 | |||
| JP2002039202A | 2002-02-06 | |||
| JP2021062354A | 2021-04-22 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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