Radial roller bearing cage

A roller bearing and cage technology, applied in the field of cages for radial roller bearings, can solve the problems of increasing the number and increasing the manufacturing cost, and achieve the effects of improving work efficiency, preventing fretting wear and reducing volume

Active Publication Date: 2014-12-10
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as described above, radial stretch molding has a problem of increased manufacturing costs due to the increase in the number of mold parts used for injection molding.
[0013] In addition, Japanese Unexamined Patent Publication No. 2-89814 and Japanese Patent Application Publication No. 54-111242 have shown improved examples of the structure of the engaging part, but in the case of these structures, there are also problems that are different from those of British Patent No. 1352909. Possibility of the same problem as documented construct

Method used

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  • Radial roller bearing cage
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Examples

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Embodiment Construction

[0064] [the first example of embodiment]

[0065] Figure 1 ~ Figure 4 This is the first example showing the embodiment of the present invention. The radial roller (needle) bearing cage 7b of this example is provided with a pair of ring-shaped rim portions 8c and 8d which are arranged concentrically with each other at intervals in the axial direction, and are intermittently spaced throughout the circumferential direction. The plurality of column parts 9 are provided in a state of being bridged between these rim parts 8c and 8d. Moreover, each of the four-sided portions surrounded by the adjacent column portion 9 in the circumferential direction and the rim portions 8c, 8d is made to freely hold the roller 6 for rolling (see Figure 23 ) pocket 10.

[0066] On the peripheral surfaces of the rim portions 8c, 8d, the portions matching the pockets 10 in the axial direction are alternately formed in the circumferential direction, and concave portions dented inward in the radial d...

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PUM

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Abstract

[Problem] To provide a radial roller bearing cage (7b) which can be manufactured by axial draw molding, and which allows ends (12c, 12d) provided to both sides of a discontinuous part (11a) to be engaged so as to allow the relative displacement thereof in the radial direction and disallow the relative displacement thereof in the axial direction. [Solution] An engagement section (13a) for the engagement of the ends (12c, 12d) is configured from an inner engagement piece (17) provided at the axial center of one of the ends (12c), and a pair of outer engagement pieces (18a, 18b) provided to both sides of the other end (12d) at positions that are separated in the axial direction and do not overlap in the axial direction. By arranging the inner engagement piece (17) at a position between the outer engagement pieces (18a, 18b) when incorporated into the radial roller bearing, the inner engagement piece (17) and the outer engagement pieces (18a, 18b) are each engaged in the axial direction without the inner engagement piece (17) and the outer engagement pieces (18a, 18b) overlapping in the radial direction.

Description

technical field [0001] This invention relates to a cage for a radial roller bearing made of synthetic resin and having a discontinuous portion at one point in the circumferential direction. Background technique [0002] Installed in the rotating support part of various mechanical devices to which a large radial load is applied Figure 23 A radial roller bearing 1 as shown. This radial roller bearing 1 is formed by a cylindrical outer ring race 3 provided on the inner peripheral surface of the radially outer member 2 and a cylindrical raceway 3 provided on the outer peripheral surface of the shaft 4 existing on the radially inner side. Between the inner ring rails 5 , a plurality of rollers 6 are provided to roll freely while being held by cages 7 . Also, combinations of the radially outer member 2 and the shaft 4 include a combination of a housing and a rotating shaft that does not rotate during use, a combination of gears, rollers, and a support shaft that rotate during us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/46F16C19/26
CPCF16C33/4694F16C2226/76F16C2226/70F16C33/4635F16C33/4676F16C19/463F16C19/26F16C33/46F16C33/4617
Inventor 石桥丰
Owner NSK LTD
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