Title:
SELF-ALIGNING ROLLER BEARING RETAINER
Document Type and Number:
WIPO Patent Application WO/2022/059281
Kind Code:
A1
Abstract:
[Problem] To provide a self-aligning roller bearing retainer in which it is possible to adopt not only a bearing guide method, but also a raceway ring guide method, without reducing the life of the bearing generated by skew or fretting of the roller, and having good ease of assembly of the bearing. [Solution] A retainer 1A used in a self-aligning roller bearing having two roller rows. The retainer comprises a pair of single-row retainers 2A, 2B that respectively guide the two roller rows. The single-row retainers 2A, 2B each form a shape in which a large-diameter ring part 3 and a small-diameter ring part 4 separated in the axial direction are connected by a plurality of column parts 5, and a flange 6 extending radially outward is provided to the large-diameter ring. A concavoconvex engagement part A comprising concave parts B and convex parts C is provided on the large-diameter-side end face 6A of the flange 6. The retainer is used in a state in which the concavoconvex engagement parts A of the single-row retainers 2A, 2B are engaged, the engagement depth of the concavoconvex engagement parts A being set to be greater than the axial-direction gap of the bearing.
Inventors:
NAKAZAWA SUMIO (JP)
MAEDA HIROYUKI (JP)
YABUBAYASHI YASUKI (JP)
MAEDA HIROYUKI (JP)
YABUBAYASHI YASUKI (JP)
Application Number:
PCT/JP2021/023063
Publication Date:
March 24, 2022
Filing Date:
June 17, 2021
Export Citation:
Assignee:
NAKANISHI METAL WORKS CO (JP)
International Classes:
F16C23/08; F16C19/38; F16C33/48
Foreign References:
| DE936307C | 1955-12-07 | |||
| JPS53118947U | 1978-09-21 | |||
| US3022125A | 1962-02-20 | |||
| JP2020148320A | 2020-09-17 | |||
| JP2019049339A | 2019-03-28 | |||
| JP343161Z1 |
Attorney, Agent or Firm:
YANAGINO Yoshihide et al. (JP)
Download PDF: