Double-row self-aligning roller bearing

一种滚子轴承、自调心的技术，应用在滚子轴承、滚动接触轴承、轴承等方向，能够解决磨耗、滚动寿命短、接触面压变大等问题

Active Publication Date: 2018-11-23
NTN CORP
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, compared with the row of rollers 44 receiving a radial load, the contact surface pressure of the row of rollers 45 receiving an axial load becomes larger, and the rolling surface of the rollers 45 and the raceway surface 43a of the outer ring 45 tend to be formed. Surface damage, wear, short rolling life

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double-row self-aligning roller bearing
  • Double-row self-aligning roller bearing
  • Double-row self-aligning roller bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] combine figure 1 , the first embodiment of the present invention will be described. In this double-row self-aligning roller bearing 1, two rows of left and right rollers 4 and 5 are interposed between the inner ring 2 and the outer ring 3 in the bearing width direction. The raceway surface 3 a of the outer ring 3 has a spherical shape, and the outer peripheral surfaces of the left and right rows of rollers 4 and 5 have a cross-sectional shape along the raceway surface 3 a of the outer ring 3 . In other words, among the outer peripheral surfaces of the rollers 4, 5, arcs along the raceway surface 3a of the outer ring 3 are curved surfaces of revolution around the centerlines C1, C2. Two rows of raceway surfaces 2 a , 2 b are formed on the inner ring 2 along the cross-sectional shape of the outer peripheral surfaces of the left and right rows of rollers 4 , 5 . Flanges (small flanges) 6 and 7 are respectively provided at both ends of the outer peripheral surface of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

In this double-row self-aligning roller bearing (1), rollers (4, 5) are interposed, between an inner race (2) and an outer race (3), in two rows beside each other in the axial width direction of the bearing, a raceway surface (3a) of the outer race (3) is spherical, and the outer peripheral surfaces of the two rows of rollers (4, 5) have a cross-sectional shape that conforms to the raceway surface(3a) of the outer race (3). The two rows of rollers (4, 5) have different lengths (L1, L2) and the length (L1) of the long roller (5) is at least 39% of the bearing width (B). The ratio of the contact angle (theta1) of the short roller (4) to the contact angle (theta2) of the long roller (5) is within the range 1:2 to 1:4. Thus, the present invention can simultaneously receive both axial load andradial load, can be used in applications in which loads of different sizes act on two rows of rollers beside each other in the axial direction, and makes it possible to sufficiently increase, withinthe constraints of boundary dimensions, the load capacity of the roller in the row that receives the axial load.

Description

[0001] related application [0002] This application requires that the application date is March 24, 2016, and the application number is JP Special Application No. 2016-59473; the application filed on the same day is the application number of JP Special Application No. 2016-59474; the application date is March 10, 2017, The priority of the application No. JP Japanese Patent Application No. 2017-45679 and the application date of March 14, 2017 and the application No. JP Japanese Patent No. 2017-48527 are taken as constituting the present application by referring to the entirety thereof. Part of the content is cited. technical field [0003] The present invention relates to a double-row self-aligning roller bearing, which is used in applications where uneven loads are applied to two rows of rollers arranged side by side in the width direction of the bearing, such as supporting wind power generators, main shafts of industrial machinery, etc. occasions. Background technique ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F16C23/08F16C19/38
CPCF16C19/38F16C43/06F16C19/225F16C23/086F16C33/36F16C33/49F16C2240/40F16C2206/04F16C2240/34F16C33/585F16C2360/31F16C23/088F16C19/386F16C19/28F16C23/08
Inventor 山本贵志濑古一将井上靖之堀径生
Owner NTN CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap