Title:
複列自動調心ころ軸受
Document Type and Number:
Japanese Patent JP6871767
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a double-row self-aligning roller bearing which is advantageously used for receiving different loads, axial load and radial load, on each of rollers of double rows aligned in an axial direction, and which can sufficiently maximize a load capacity of the rollers of the rows receiving the axial load by having a large contact angle between the rollers of both rows receiving the axial load.SOLUTION: A double-row self-aligning roller bearing 1 includes an inner ring 2 and an outer ring 3, and double-row rollers 4, 5 therebetween aligned in two rows in a bearing width direction. A raceway surface 3a of the outer ring 3 is in a spherical shape, and an outer surface of the double-row rollers 4, 5 forms a cross-sectional shape along the raceway surface 3a of the outer ring 3. The double-row rollers 4, 5 have different length L1, L2. A contact angle θ2 of the longer roller 5 is made larger than a contact angle θ1 of the smaller roller 4. A center position Q of a center rib 8 in a bearing width direction is shifted toward the longer roller 5 from a position on point P in a bearing width direction where action lines S1, S2 intersect to form contact angles θ1, θ2.SELECTED DRAWING: Figure 1
Inventors:
Se Koichi Shogun
Yasuyuki Inoue
Hori Daisei
Takashi Yamamoto
Yasuyuki Inoue
Hori Daisei
Takashi Yamamoto
Application Number:
JP2017048527A
Publication Date:
May 12, 2021
Filing Date:
March 14, 2017
Export Citation:
Assignee:
ntn corporation
International Classes:
F16C19/38; F16C25/08
Domestic Patent References:
| JP2004245251A | ||||
| JP200583467A | ||||
| JP200740520A | ||||
| JP2007255601A | ||||
| JP2007247678A |
Foreign References:
| DE102004047881A1 |
Attorney, Agent or Firm:
Shuji Sugimoto
Kenro Tsutsumi
Daisuke Kaneko
Hiroki Taniguchi
Kenichi Nakata
Yuka Kobayashi
Shinji Nakao
Masashi Noda
Kenro Tsutsumi
Daisuke Kaneko
Hiroki Taniguchi
Kenichi Nakata
Yuka Kobayashi
Shinji Nakao
Masashi Noda