CN202165444U

CN202165444U - Rolling bearing with lubricating oil grooves

Info

Publication number: CN202165444U
Application number: CN2011202588058U
Authority: CN
Inventors: 何俊; 祝斌星
Original assignee: WENZHOU MUTE BEARING CO Ltd
Current assignee: WENZHOU MUTE BEARING CO Ltd
Priority date: 2011-07-20
Filing date: 2011-07-20
Publication date: 2012-03-14
Anticipated expiration: 2021-07-20

Abstract

The utility model relates to a rolling bearing with lubricating oil grooves, which comprises a bearing inner ring, a bearing outer ring and a plurality of balls arranged between the bearing inner ring and a bearing outer ring. The plurality of lubricating oil grooves are arranged on the inner surface of the baring inner ring. By adopting the technical scheme, the rolling bearing with lubricating oil grooves not only can reduce production cost, but also can maintain friction with low loss between a shaft and the bearing.

Description

A kind of rolling bearing that has oil groove

Technical field

The utility model relates to a kind of bearing, particularly a kind of rolling bearing.

Background technique

At present, existing a kind of rolling bearing in practical application, except back shaft rotatablely moves as circumference, also will axially constantly moving back and forth along axle.

This rolling bearing generally comprises bearing inner race, bearing outer ring and is arranged on the plurality of balls between bearing inner race, the bearing outer ring, is provided with lube layer between bearing inner race and the axle; But the rolling bearing of this structure is at rolling bearing during along the axial motion of axle; Because long-time the use, lube layer is approach exhaustion gradually, can produce dry friction between axle and the bearing inner race; A lot of producers make great efforts to improve axle surface and bearing inner race surface smooth degree, this method in order to reduce this dry friction; Not only improved cost of production, and can not tackle the problem at its root, axle still sintering phenomenon can occur with the long-term use of bearing; Bearing wear is big, and the working life of bearing is brief.

Summary of the invention

The purpose of the utility model: in order to overcome the defective of existing technology, the utility model provides a kind of rolling bearing that has oil groove, not only can reduce production costs, and can guarantee the low damage friction between axle and the bearing for a long time.

The technological scheme of the utility model: a kind of rolling bearing that has oil groove, include bearing inner race, bearing outer ring and be arranged on the plurality of balls between bearing inner race, the bearing outer ring, the internal surface of described bearing inner race is provided with some oil grooves.

Adopt technique scheme, through on the internal surface of described bearing inner race, being provided with some oil grooves, the lubricant grease in the oil groove can in time compensate behind the lube layer approach exhaustion between bearing inner race and the axle; Still can guarantee the low damage friction between axle and the bearing; Thereby prolonged the working life of bearing, and, the rolling bearing of this structure; Reduce the requirement of the roughness of bearing inner race surface, axle outer surface, and then reduced cost of production.

The further setting of the utility model: described oil groove axially is provided with along bearing inner race in the form of a ring.

Adopt above-mentioned further setting, oil groove axially is provided with along bearing inner race in the form of a ring, in the time of can further reducing the axial motion of rolling bearing axle on the edge, and the friction between bearing inner race surface and the axle.

Further being provided with again of the utility model: described oil groove is provided with two.

Adopt above-mentioned further setting again, two oil grooves are set can guarantee the low damage friction between axle and the bearing for a long time, and, cost of production reduced.

Description of drawings

Fig. 1 is the structural representation of the utility model specific embodiment;

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

Embodiment

Like Fig. 1, shown in 2, a kind of rolling bearing that has oil groove includes bearing inner race 1, bearing outer ring 2 and is arranged on the plurality of balls 3 between bearing inner race 1, the bearing outer ring 2, and the internal surface of described bearing inner race 1 is provided with some oil grooves 4.

In the utility model specific embodiment, described oil groove 4 axially is provided with along bearing inner race 1 in the form of a ring, and described oil groove 4 cross sections are semicircle.

In the utility model specific embodiment, described oil groove 4 is provided with two, certainly, also more lubricating oil groove 4 can be set, and still, takes all factors into consideration from the friction between cost of production, axle and the bearing etc., two oil grooves 4 need be set and get final product.

Claims

1. a rolling bearing that has oil groove includes bearing inner race, bearing outer ring and is arranged on the plurality of balls between bearing inner race, the bearing outer ring, and it is characterized in that: the internal surface of described bearing inner race is provided with some oil grooves.

2. the rolling bearing that has oil groove according to claim 1 is characterized in that: described oil groove axially is provided with along bearing inner race in the form of a ring.

3. the rolling bearing that has oil groove according to claim 1 and 2 is characterized in that: described oil groove is provided with two.