CN201561046U - Plane bearing - Google Patents

Abstract

The utility model discloses a plane bearing, comprising a bearing outer ring, a bearing inner ring and a keeping rack, wherein the keeping rack is a PPO plastic circular body and circular grooves are provided on the upper, lower surfaces of the circular body. The metal keeping rack in the prior technology and an iron shot on the roller track are replaced by the circular PPO plastic keeping rack therefore the technical problem is solved that the iron shot in the prior technology can not resist the high temperature and the experiment shows that: the PPO plastic keeping rack is more high-temperature resistant and more wear resistant than the iron shot in the prior technology.

Description

A kind of plane bearing

Technical field

The utility model relates to a kind of improvement of bearing.

Background technique

Existing plane bearing as shown in Figure 1, its metal retainer 1 is provided with the raceway corresponding with bearing inner race 2, bearing outer ring 3, rolls for iron shot 4 and is located at therebetween.Because iron shot 4 is very easily ftractureing, is being out of shape surpassing under 100 ℃ the temperature, so, working life of solid bearing influenced.

The model utility content

At the deficiencies in the prior art part, the utility model provides a kind of novel plane bearing, and it is not only high temperature resistant, and more wear-resistant.

For achieving the above object, technical solutions of the utility model are:

A kind of plane bearing, it comprises a bearing outer ring, a bearing inner race and a retainer, and described retainer is a plastics ring bodies, and this plastics ring bodies is concaved with annular oil groove on two surfaces up and down.

The usefulness of technique scheme is:

The utility model is with metal retainer of the prior art and be placed in and have iron shot to replace to the PPO plastic cage of a ring-type on its raceway, having solved in the prior art iron shot can not resistant to elevated temperatures technical barrier, experimental results show that, PPO plastic cage of the present utility model can anti-150 ℃-170 ℃ high temperature, and the PPO plastic cage is better than iron shot wear resistance of the prior art.

Description of drawings

Fig. 1 is the prior art cross-sectional schematic;

Fig. 2 is the utility model cross-sectional schematic.

Embodiment

The utility model now is described in conjunction with the accompanying drawings and embodiments.

A kind of plane bearing as shown in Figure 2, it comprises a bearing outer ring 5, a bearing inner race 6 and a retainer 7, described retainer 7 is a PPO plastics ring bodies, this PPO plastics ring bodies is concaved with annular oil groove 71 on two surfaces up and down, reduces the friction of bearing outer ring 5,6 pairs of PPO plastics of bearing inner race ring bodies.

Claims (2)

1. plane bearing, it comprises a bearing outer ring, a bearing inner race and a retainer, it is characterized in that: described retainer is a plastics ring bodies, this plastics ring bodies is concaved with annular oil groove on two surfaces up and down.

2. a kind of plane bearing as claimed in claim 1 is characterized in that: described retainer is a PPO plastics ring bodies.

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