CN203702873U

CN203702873U - Low-friction retainer of bearing

Info

Publication number: CN203702873U
Application number: CN201420018221.7U
Authority: CN
Inventors: 赵坤
Original assignee: Ningbo Cixing Bearing Co Ltd
Current assignee: Ningbo Cixing Bearing Co Ltd
Priority date: 2014-01-13
Filing date: 2014-01-13
Publication date: 2014-07-09
Anticipated expiration: 2024-01-13

Abstract

The utility model discloses a low-friction retainer of a bearing. The low-friction retainer comprises a ring-shaped retainer body arranged between an inner ring and an outer ring of the bearing, wherein the ring side wall of the retainer body is provided with a plurality of ball pockets; the ball pockets include 3 or 4 first ball pockets with spherical inner surfaces and second ball pockets with planar bottoms, wherein the first ball pockets are uniformly distributed on the retainer body, and other ball pockets except for the 3 or 4 first ball pockets are all second ball pockets. The low-friction retainer has the beneficial effects that the bottoms of the second ball pockets are planar, so that balls placed into the second ball pockets are in point contact with the bottoms of the second ball pockets to ensure that the contact surfaces between the balls and the second ball pockets are effectively reduced, and furthermore, the friction is reduced.

Description

A kind of low friction retainer of bearing

Technical field

The utility model relates to technical field of bearings, relates in particular to a kind of low friction retainer of bearing.

Background technique

Referring to Fig. 1 to Fig. 3, the traditional ball-bearing retainer providing in figure, comprise support body 10, support body 1 is arranged between bearing inner race 20 and outer ring 30, on the sidewall of the ring of support body 10, be provided with some ball pockets 11, the inner face of ball pocket 11 is spheric structure, in each ball pocket 11, be all placed with ball 40, because the inner face of ball pocket 11 is spheric structure, ball 40 is larger with the surface of contact of ball pocket 11, thereby the friction between roller bearing 40 and ball pocket 11 is also large when bearing working, so not only can be large to ball wearing and tearing, easily there is the phenomenon that ball is cracked or ball is stuck, and retainer also shortens greatly because wearing and tearing cause working life.

Model utility content

Technical problem to be solved in the utility model: the low friction retainer that a kind of bearing is provided for the deficiencies in the prior art.

The technical problem that the utility model solves can realize by the following technical solutions:

A kind of low friction retainer of bearing, comprise the support body that is arranged on the ring between bearing inner race and outer ring, on the annulus sidewall of described support body, be provided with some ball pockets, described ball stomacher draw together its inner face be sphere the first ball pocket taking and bottom surface as the second ball pocket of plane, the quantity of the first ball pocket in described ball pocket is that three or four and these the first ball pockets are distributed on described support body, and described in remaining, ball pocket is the second ball pocket.

Owing to having adopted technological scheme as above, the beneficial effects of the utility model are: the bottom surface of the second ball pocket is plane, thereby to be placed on ball in the second ball pocket and the bottom surface of the second ball pocket be to contact, effectively reduce the area of contact of ball and the second ball pocket, thereby reduced friction.

Brief description of the drawings

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the structural representation of existing retainer.

Fig. 2 is arranged on the structural representation between the inside and outside circle of bearing after existing retainer is placed ball.

Fig. 3 is the enlarged view at the A place of Fig. 2.

Fig. 4 is structural representation of the present utility model.

Fig. 5 is arranged on the structural representation between the inside and outside circle of bearing after the utility model is placed ball.

Fig. 6 is the partial enlarged drawing of Fig. 5.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 4 to Fig. 6, the low friction retainer 100 of a kind of bearing providing in figure, comprises the support body 110 of ring, this support body 110 is arranged between bearing inner race 200 and outer ring 300, on the annulus sidewall of support body 110, be provided with 23 ball pockets, in each ball pocket, be all placed with ball 400.

Ball pocket be divided into its inner face be sphere ball pocket 120a taking and bottom surface as the ball pocket 120b of plane, wherein, the quantity of ball pocket 120a is three or four, in the present embodiment, the quantity of ball pocket 120a is four, and these four ball pocket 120a are distributed on the annulus sidewall of support body 110, and the ball pocket of remaining is ball pocket 120b.

The ball 400 being placed in ball pocket 120a is wrapped by ball pocket 120a, has effectively ensured the stability of whole retainer 100 in bearing inner race 200 and outer ring 300.Because the bottom surface of ball pocket 120b is plane, thereby to be placed on ball 400 in ball pocket 120b and the bottom surface of ball pocket 120b be to contact, and effectively reduced the area of contact of ball 400 with ball pocket 120b, thereby reduced friction.

More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. the low friction retainer of a bearing, comprise the support body that is arranged on the ring between bearing inner race and outer ring, on the annulus sidewall of described support body, be provided with some ball pockets, it is characterized in that, described ball stomacher draw together its inner face be sphere the first ball pocket taking and bottom surface as the second ball pocket of plane, the quantity of the first ball pocket in described ball pocket is that three or four and these the first ball pockets are distributed on described support body, and described in remaining, ball pocket is the second ball pocket.