CN203082031U

CN203082031U - Plastic bearing retainer and needle roller bearing

Info

Publication number: CN203082031U
Application number: CN 201320020228
Authority: CN
Inventors: 孙佳伟; 许双胞; 夏萌
Original assignee: Jiangsu Nanfang Bearing Co Ltd
Current assignee: Jiangsu Nanfang Bearing Co Ltd
Priority date: 2013-01-15
Filing date: 2013-01-15
Publication date: 2013-07-24
Anticipated expiration: 2023-01-15

Abstract

The utility model relates to a plastic bearing retainer which comprises two circular ring parts and a plurality of window beams which are evenly distributed between the two circular ring parts, wherein a window used for supporting a roller is formed between every two adjacent window beams; the utility model also relates to a needle roller bearing which comprises an outer ring of the bearing and needle rollers; the inner wall of the outer ring of the bearing is provided with the plastic bearing retainer; and the needle rollers are distributed in the windows of the plastic bearing retainer. Under the condition that oil is not used, the needle rollers are maintained not to fall off in a free state, and a bearing is avoided being incompatible with the lubricating oil used by equipment under the condition of using the oil.

Description

Bearing plastic cage and needle bearing

Technical field

The utility model relates to the retainer technical field, also relates to technical field of bearings, especially a kind of bearing plastic cage and needle bearing.

Background technique

The needle roller of needle bearing needle roller when completely adorning is evenly arranged in bearing outer ring inside, between the needle roller of bearing, add grease lubrication by meeting, but this method is brought and the incompatible problem of equipment lubrication liquid sometimes, therefore how can guarantee again under the situation of non-refuelling fat that it is a problem that needs to be resolved hurrily at present that needle roller does not fall.

The model utility content

The technical problems to be solved in the utility model is: add behind the grease and the incompatible problem of equipment lubrication liquid in order to overcome the prior art middle (center) bearing, overcome again simultaneously and do not add the technical problem that the needle roller assembling is not dropped under the grease situation, a kind of bearing plastic cage and needle bearing are provided.

The technological scheme that its technical problem that solves the utility model adopts is: a kind of bearing plastic cage comprises that two annulus portions and even ring-type are distributed in several window beams between two annulus portions, are formed for the window of supporting roller between the adjacent windows beam.Come support rollers by the window that forms between the window beam, prevent to drop when roller from completely adorning, saved grease.

In order can support rollers not drop, two walls of described window beam are the inclined-plane, and the window oral area that forms between the adjacent windows beam is wide at the top and narrow at the bottom.

Also can be in the following ways, two walls of described window beam are arc surface, the window oral area that forms between the adjacent windows beam is wide at the top and narrow at the bottom.

Equally also can be in the following way, two wall tops of described window beam are arc surface, and the bottom is a vertical plane, and the window oral area that forms between the adjacent windows beam is wide at the top and narrow at the bottom.

As preferably, described several window beams are arranged near two annulus portion inner radius, and the part that exceeds of annulus portion can prop up the needle roller end like this, just can play the axially movable effect of needle roller of keeping out.

A kind of needle bearing comprises bearing outer ring and needle roller, and described bearing outer ring inwall is provided with the bearing plastic cage, and described needle roller is arranged in the window of bearing plastic cage.

The beneficial effects of the utility model are that the utility model can keep needle roller needle roller under free state not drop under the situation of not using grease, can avoid bearing under the situation of using grease, produces incompatible situation with the employed lubricant oil of equipment.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structural representation of bearing plastic cage of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the B place enlarged view of Fig. 2 of embodiment 1;

Fig. 4 is the B place enlarged view of Fig. 2 of embodiment 2;

Fig. 5 is the B place enlarged view of Fig. 2 of embodiment 3;

Fig. 6 is the structural representation of needle bearing of the present utility model;

Fig. 7 is the B-B sectional view of Fig. 6.

Among the figure: 1. annulus portion, 2. window beam, 21. inclined-planes, 22. arc surfaces, 23. vertical planes, 3. window, 4. bearing inner race, 5. needle roller, 6. bearing plastic cage.

Embodiment

In conjunction with the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.

Shown in Figure 2 as Fig. 1, bearing plastic cage 6 comprises that two annulus portions 1 and even ring-type are distributed in several window beams 2 between two annulus portions 1, several window beams 2 are arranged near two annulus portion 1 inner radius, be formed for the window 3 of supporting roller between the adjacent windows beam 2, for window 3 can support rollers be dropped to prevent it, can take following three kinds of different mode of executions:

Embodiment 1

As shown in Figure 3, two walls of window beam 2 are inclined-plane 21, and window 3 oral areas that form between the adjacent windows beam 2 are wide at the top and narrow at the bottom.

Embodiment 2

As shown in Figure 4, two walls of window beam 2 are arc surface 22, and window 3 oral areas that form between the adjacent windows beam 2 are wide at the top and narrow at the bottom.

Embodiment 3

As shown in Figure 5, two wall tops of window beam 2 are arc surface 22, and the bottom is a vertical plane 23, and window 3 oral areas that form between the adjacent windows beam 2 are wide at the top and narrow at the bottom.

By can under the situation of not using grease, keeping needle roller needle roller under free state not drop with upper type, can avoid bearing under the situation of using grease, produce incompatible situation with the employed lubricant oil of equipment.

As Fig. 6 Fig. 7, a kind of needle bearing comprises bearing outer ring 4 and needle roller 5, and bearing outer ring 4 inwalls are provided with bearing plastic cage 6, and needle roller 5 is arranged in the window 3 of bearing plastic cage 6.With the punching press needle bearing is example, adopt bearing plastic cage 6 to fix in needle roller 5 and needle roller 5 compact arranged lower space, prevent that bearing needle 5 is under the prerequisite of not using grease, needle roller 5 can not drop under free state, and the performance that bearing keeps full dress drawn cup needle roller bearing to be had simultaneously.

With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.

Claims

1. a bearing plastic cage is characterized in that: comprise that two annulus portions (1) and even ring-type are distributed in several window beams (2) between two annulus portions (1), are formed for the window (3) of supporting roller between the adjacent windows beam (2).

2. bearing plastic cage as claimed in claim 1 is characterized in that: two walls of described window beam (2) are inclined-plane (21), and window (3) oral area that forms between the adjacent windows beam (2) is wide at the top and narrow at the bottom.

3. bearing plastic cage as claimed in claim 1 is characterized in that: two walls of described window beam (2) are arc surface (22), and window (3) oral area that forms between the adjacent windows beam (2) is wide at the top and narrow at the bottom.

4. bearing plastic cage as claimed in claim 1 is characterized in that: two wall tops of described window beam (2) are arc surface (22), and the bottom is vertical plane (23), and window (3) oral area that forms between the adjacent windows beam (2) is wide at the top and narrow at the bottom.

5. as claim 1 or 2 or 3 or 4 described bearing plastic cages, it is characterized in that: described several window beams (2) are arranged at the inner radius near two annulus portions (1).

6. needle bearing with each described bearing plastic cage of claim 1～5, it is characterized in that: comprise bearing outer ring (4) and needle roller (5), described bearing outer ring (4) inwall is provided with bearing plastic cage (6), and described needle roller (5) is arranged in the window (3) of bearing plastic cage (6).