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Title:
DOUBLE-ROW SELF-ALIGNING ROLLER BEARING
Document Type and Number:
WIPO Patent Application WO/2018/131618
Kind Code:
A1
Abstract:
In a double-row self-aligning roller bearing (1), rollers (4, 5) are aligned in a bearing width direction and interposed in two rows between an inner ring (2) and an outer ring (3). A track surface (3a) of the outer ring (3) has the shape of a spherical surface. The outer peripheral surfaces of the rollers (4, 5) have cross-sectional shapes that conform to the track surface (3a) of the outer ring (3). The rollers (4, 5) have equal lengths (L1, L2) and maximum diameters (D1max, D2max), and the distances (K1, K2) from lengthwise centers (B1, B2) of the respective rollers to the positions (A1, A2) of maximum diameter are different.

Inventors:
YAMAMOTO, Takashi (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 78, 〒5118678, JP)
INOUE, Yasuyuki (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 78, 〒5118678, JP)
SEKO, Kazumasa (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 78, 〒5118678, JP)
HORI, Michio (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 78, 〒5118678, JP)
Application Number:
JP2018/000379
Publication Date:
July 19, 2018
Filing Date:
January 10, 2018
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
F16C23/08; F16C19/38; F16C33/34; F16C33/58
Domestic Patent References:
WO2005050038A12005-06-02
Foreign References:
JP2004019731A2004-01-22
JP2005207517A2005-08-04
US2008336A1935-07-16
US20140112607A12014-04-24
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (Higobashi Nittai Bldg, 10-2 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
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