Unlock instant, AI-driven research and patent intelligence for your innovation.

Shell type needle bearing and joint cross type universal joint

A technology of needle roller bearings and cross shafts, which is applied in the field of cross shaft universal joints, can solve the problems of thin rust on the surface, and achieve the effects of preventing wear and development, satisfying low cost, and ensuring durability

Active Publication Date: 2015-04-15
NSK LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the use conditions become severe, there is still the possibility of thin rust on the surface
Due to such thin rust, the wear of the front edge of the sealing lip also develops

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
  • Shell type needle bearing and joint cross type universal joint
  • Shell type needle bearing and joint cross type universal joint
  • Shell type needle bearing and joint cross type universal joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] [The first example of the first embodiment]

[0068] figure 1 The first example of the first embodiment of the present invention is shown. In addition, including this example, the first embodiment of the present invention is characterized in that, in order to realize the structure of the shell type needle roller bearing and the cross shaft type universal joint that can satisfy the requirements of cost reduction and durability assurance at the same time, the formation of The coating for corrosion protection on the surface of the shell-type outer ring is specially researched. The structures and functions of other parts are the same as those of conventional structures, so illustrations and descriptions related to equivalent parts are omitted or simplified, and the following description will focus on the characteristic parts of the present invention.

[0069] The shell-type outer ring 9a constituting the shell-type needle roller bearing 4a of this example is formed by be...

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

Construction is achieved of a cross-type universal joint and a shell-type needle bearing that is used therein for which cost can be lowered and durability can be maintained by suitably maintaining the seal performance even when used in severe operating conditions. The portions on the outer surface of the shell-type outer ring 9a for which there is a possible of coming in sliding contact with the tip end edges of at least two seal lips 17, 18 of a plurality of seal lips of a seal ring 14 are selectively covered with a corrosion resistant coating. Preferably, the entire outer surface of the shell-type outer ring is covered by a chemically treated film having anti-corrosion properties.

Description

technical field [0001] The present invention relates to a shell-type outer ring formed by bending a metal plate into a cylindrical shape with a bottom. Shell type needle roller bearings used with the gap between the surfaces closed, and cross shaft type universal joints incorporating the shell type needle roller bearings. Background technique [0002] The cross-shaft universal joint is incorporated into the joint between the end of the drive shaft and another rotating shaft constituting the drive train of the motor vehicle, so that the rotational force between these driving shafts and rotating shafts arranged in a non-linear shape transfer possible. The cross shaft universal joint is also installed between the steering shaft and the intermediate shaft constituting the steering device for automobiles, between the intermediate shaft and the pinion shaft of the steering gear unit, etc., so that these shafts arranged on a non-linear line Transmission of rotational force betwee...

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 Patents(China)
IPC IPC(8): F16C19/26F16C19/44F16C33/64F16C33/78F16D3/41
CPCF16C33/7823F16C33/58F16C33/7809F16D3/41F16C33/7889F16C19/225F16C19/44F16D3/385F16C19/26F16C33/64F16C33/7886F16C17/04F16C19/46F16C19/52F16C21/005F16C33/586F16C33/588F16C33/62F16C33/7826F16C2361/41F16D2250/0046F16D2300/08Y02T10/86
Inventor 樋口政人渡边荣翔
Owner NSK LTD