CN212959546U

CN212959546U - Step surface rolling bearing

Info

Publication number: CN212959546U
Application number: CN202021159430.5U
Authority: CN
Inventors: 陈永超
Original assignee: Xinchang Jinkai Machinery Co ltd
Current assignee: Xinchang Jinkai Machinery Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-04-13
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to the technical field of auto-parts, a step face antifriction bearing is disclosed, the main part includes bearing inner race, bearing inner circle, sets up the ball through the holder cooperation between bearing inner race and the bearing inner circle, and the bearing inner race cooperation sets up in the right part position of bearing inner circle, and bearing inner circle right side surface sets up first positioning groove, and bearing inner race middle part internal surface on a left side sets up second positioning groove, and corresponding ball passes through the holder cooperation and sets up between first positioning groove, second positioning groove, bearing inner circle left side terminal surface is the step face. The utility model discloses simple structure is novel, firm, and convenient to detach installs, can prevent effectively that the dust from getting into antifriction bearing inside, improves bearing life.

Description

Step surface rolling bearing

Technical Field

The utility model relates to the technical field of auto-parts, especially, relate to a side is antifriction bearing of step face.

Background

Automobile bearing works in the environment of high rotational speed high temperature for a long time, therefore the bearing is at the working process for can produce micro clearance and can produce relative displacement between belt pulley and the bearing inner race between bearing inner race and the belt, thereby reduce the job stabilization nature of bearing. With the continuous development of the automobile industry, the number of bearings required by automobiles with various specifications and models is large and complex, the mounting and use position structures are different, and the structure and the shape of the bearing need to be improved so as to meet various mounting and use requirements.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem existing in the prior art, the utility model provides a stable in structure's step face antifriction bearing is used in installation, its concrete technical scheme as follows.

A rolling bearing with a step surface comprises a main body, wherein a bearing outer ring and a bearing inner ring are arranged between the main body and the bearing inner ring, balls are arranged between the bearing outer ring and the bearing inner ring through a retainer in a matched mode, the bearing outer ring is arranged at the right position of the bearing inner ring in a matched mode, a first positioning groove is formed in the outer surface of the right side of the bearing inner ring, a second positioning groove is formed in the inner surface of the middle part of the bearing outer ring on the left side, corresponding balls are arranged between the first positioning groove and the second positioning groove through the retainer in.

Furthermore, the step surface comprises an upper step surface and a lower step surface, a circular through hole is formed in the middle of the upper step surface, and a threaded hole is formed in the right part of the lower step surface.

Furthermore, the left side and the right side of the retainer are provided with sealing elements in a matching manner, and the sealing elements are embedded into an inner sealing groove and an outer sealing groove which are arranged on the outer ring of the bearing and the inner ring of the bearing in an interference manner.

The utility model has simple and novel structure, and can effectively prevent the lubricating oil from leaking and prevent dust from entering the inside of the bearing of the tensioning wheel due to the arrangement of the sealing element structure, thereby improving the service efficiency and prolonging the service life of the bearing; through the configuration of other accessories and the joint of the rolling bearing step surface, the installation is convenient to detach and the installation can be more firmly and stably.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic right side view of the structure of FIG. 1;

in the drawings, 1-bearing outer race; 2-a ball bearing; 3-a seal; 4-bearing inner race; 5-a circular through hole; 6-a cage; 7-inner seal groove; 8-outer seal groove; 9-a threaded hole; 10-lower step surface; 11-upper step surface; 12-a first positioning groove; 13-second positioning groove.

Detailed Description

The following description will be made in detail with reference to the accompanying drawings.

As shown in fig. 1-2, the main body includes a bearing outer ring 1 and a bearing inner ring 4, balls 2 are disposed between the bearing outer ring 1 and the bearing inner ring 4 through a retainer 6 in a matching manner, the bearing outer ring 1 is disposed at the right position of the bearing inner ring 4 in a matching manner, a first positioning groove 12 is disposed on the outer surface of the right side of the bearing inner ring 4, a second positioning groove 13 is disposed on the inner surface of the middle portion of the bearing outer ring 1, corresponding balls 2 are disposed between the first positioning groove 12 and the second positioning groove 13 through the retainer 6 in a matching manner, and the left end surface of the bearing inner ring 4 is a.

The step surface comprises an upper step surface 11 and a lower step surface 10, a circular through hole 5 is formed in the middle of the upper step surface, a threaded hole 9 is formed in the right part of the lower step surface, and the step surface is matched with other accessories to be clamped with the accessories, so that the rolling bearing is more stably installed in an automobile engine.

The left side and the right side of the retainer 6 are matched with each other to form the sealing element 3, the sealing element 3 is embedded into the inner sealing groove 7 and the outer sealing groove 8 which are formed in the bearing outer ring 1 and the bearing inner ring 4 in an interference mode, and due to the sealing structure, lubricating oil leakage and dust can be effectively prevented from entering the inside of the bearing of the tensioning wheel, the service efficiency of the bearing is improved, and the service life of the bearing is prolonged.

During installation and use, the rolling bearing is arranged on the automobile engine through the positioning frame, the positioning frame is in mutual clamping fit of the step surface and the step surface of the inner ring of the rolling bearing, the bolt penetrates through the circular through hole 5, the threaded hole 9 is connected with the positioning frame through the screw, and then the bolt is matched with the nut to lock the bearing, so that the rolling bearing is prevented from loosening, and the rolling bearing is more stably installed in the automobile engine. When the bearing needs to be disassembled, adjusted or replaced after being used for a period, the nut and the screw for fixing the rolling bearing are loosened, and the disassembly and adjustment can be carried out through the axial movement of the bolt.

Claims

1. The utility model provides a step face antifriction bearing, the main part includes bearing inner race (1), bearing inner race (4), set up ball (2) through holder (6) cooperation between bearing inner race (4) and the bearing outer race (1), its characterized in that bearing inner race (1) cooperation sets up in the right part position of bearing inner race (4), bearing inner race (4) right side surface sets up first positioning groove (12), bearing inner race (1) middle part is left to the internal surface set up second positioning groove (13), corresponding ball (2) set up between first positioning groove (12), second positioning groove (13) through holder (6) cooperation, bearing inner race (4) left side terminal surface is the step face.

2. A stepped surface rolling bearing according to claim 1 wherein said stepped surface comprises an upper stepped surface (11) and a lower stepped surface (10), said upper stepped surface having a circular through hole (5) in the middle thereof and said lower stepped surface having a threaded hole (9) in the right portion thereof.

3. A stepped surface rolling bearing according to claim 1, wherein the left and right sides of the retainer (6) are provided with the sealing members (3) in a matching manner, and the sealing members (3) are embedded into the inner sealing groove (7) and the outer sealing groove (8) which are arranged on the outer ring (1) and the inner ring (4) of the bearing in an interference manner.