CN211975677U

CN211975677U - Ball bearing without retainer

Info

Publication number: CN211975677U
Application number: CN201922389653.4U
Authority: CN
Inventors: 唐元超; 王爱红; 姚兴峰; 李林泽
Original assignee: Shandong Zhaoyang Bearing Co ltd
Current assignee: Shandong Zhaoyang Bearing Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-11-20
Anticipated expiration: 2029-12-26

Abstract

The utility model provides a ball bearing without a retainer, which comprises an inner ring, an outer ring and a rolling body; the inner ring has no flange; the inner wall of the outer ring is provided with embedding holes which are arranged at intervals, and the rolling body is positioned in the embedding holes; the depth of the embedding hole is larger than the radius of the rolling body, and the size of the opening is smaller than the diameter of the rolling body. The roll integument imbeds and can not drop after the caulking hole, and the caulking hole of arranging at the interval keeps the rolling element apart, consequently the utility model discloses a ball bearing does not have additional retainer part, and bearing arrangement is further simplified, and the outer lane is separable in the bearing, and the installation is convenient. The utility model discloses a ball bearing can regard as free end bearing to use as the direction bearing under special operating mode such as high speed, heavy load.

Description

Ball bearing without retainer

Technical Field

The utility model relates to a bearing technical field especially relates to a no keep ware ball bearing.

Background

At present, when the bearing is used as a guide bearing, a cylindrical roller bearing or a linear bearing is generally selected, the cylindrical roller bearing can bear heavy load, but the limit rotating speed of the cylindrical roller bearing is lower than that of a ball bearing, and the linear bearing cannot bear the heavy load and is only suitable for low-load working conditions. The guiding problem under special working conditions such as high speed and heavy load can not be effectively solved, so that a guiding bearing which can guide, bear heavy load and adapt to high speed is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a no retainer ball bearing can effectively solve the problem that current direction bearing can't satisfy use under the high-speed heavy loaded operating mode.

To achieve the above and other related objects, the present invention provides a retainer-less ball bearing, characterized in that: comprises an inner ring, an outer ring and a rolling body; the inner ring is not provided with a flange; the inner wall of the outer ring is provided with embedding holes which are arranged at intervals, and the rolling body is positioned in the embedding holes; the depth of the embedding hole is larger than the radius of the rolling body, and the size of the opening is smaller than the diameter of the rolling body.

Optionally, the shape of the insertion hole is matched to the rolling body.

Preferably, the depth of the embedding hole is 0.01-0.03 mm larger than the radius of the rolling body.

Preferably, the embedding holes are arranged on the inner wall of the outer ring at equal intervals.

As described above, the retainer-less ball bearing of the present invention has the following technical effects:

(1) the inner wall of the outer ring is provided with the embedding hole, the opening of the embedding hole is smaller than the diameter of the rolling body, so the rolling body can not fall off after being embedded into the embedding hole, and the embedding holes arranged at intervals isolate the rolling body, therefore, the ball bearing of the utility model has no additional retainer part, and the bearing structure is further simplified;

(2) the bearing inner race does not have the flange, therefore the inner race all can remove on axial two directions, the utility model discloses a ball bearing can regard as the free end bearing to use as the direction bearing under special operating mode such as high speed, heavy load.

(3) The structure is simple, the inner ring and the outer ring of the bearing are separable, and the installation is convenient.

Drawings

Fig. 1 is a schematic structural view of a retainer-less ball bearing disclosed in the present invention.

Description of the reference symbols

1 outer ring

2 rolling element

3 inner ring

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, changes of the ratio relationship or adjustment of the sizes should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The embodiment of the utility model discloses an embodiment provides a no keep ware ball bearing is provided with the inlay hole in the bearing inner race, plays the effect that provides the raceway for the rolling element promptly, plays the effect of keeping apart the rolling element again, has replaced the keep ware among the traditional ball bearing.

As shown in fig. 1, the embodiment of the present invention provides a ball bearing without a retainer, which includes an outer ring 1, a rolling element 2 and an inner ring 3, wherein an embedding hole for accommodating the rolling element 2 is formed on an inner wall of the outer ring 1 at an interval, and the shape and size of the embedding hole in the present embodiment are matched with the rolling element 2, i.e. the curvature of the embedding hole is the same as the curvature of the rolling element 2. The depth of the insertion opening is greater than the radius of the rolling body 2, preferably greater than the radius of the rolling body 2, and it can be seen from fig. 1 that the axial plane of the rolling body 2 passes through the insertion opening, so that the opening diameter of the insertion opening is slightly smaller than the diameter of the rolling body 2. This structure makes it possible to fit the rolling bodies 2 into the insertion holes by pressing or the like, and since the openings of the insertion holes are smaller than the diameter of the rolling bodies 2, retention of the rolling bodies 2 in the insertion holes can be achieved. The rolling elements 2 are isolated by the embedding holes which are arranged at intervals without the action of an additional retainer, and the embedding holes provide raceways for the rolling elements 2. Preferably, the embedding holes are arranged on the inner wall of the outer ring 1 at equal intervals. Further preferably, the depth of the embedding hole is 0.01-0.03 mm larger than the radius of the rolling element 2. Since the rolling bodies 2 are held in the insertion holes, the rolling bodies 2 do not scatter during use of the bearing.

In the embodiment, both sides of the inner ring 3 are not provided with flanges, and after the rolling body 2 is embedded into the embedding hole, the inner ring 3 is assembled to complete the installation of the bearing. Because there is no flange, the inner ring 3 can move in two axial directions, and the bearing can be used as a free end bearing.

As shown above, the utility model provides a no retainer ball bearing, with the rolling element imbed on the outer lane in the inlay hole that sets up, the outer lane when providing the raceway for the rolling element, replaced the effect of retainer in the traditional ball bearing, simple structure. The inner ring and the outer ring of the bearing are of a separable structure, so that the bearing is convenient to mount. The inner circle is all movable in two directions along the axis, can regard as free end bearing to use, consequently the utility model provides a no keep ware ball bearing can use as direction bearing under special operating mode such as high-speed, heavy load.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A retainer-less ball bearing characterized in that:

comprises an inner ring, an outer ring and a rolling body;

the inner ring is not provided with a flange;

the inner wall of the outer ring is provided with embedding holes which are arranged at intervals, and the rolling body is positioned in the embedding holes;

the depth of the embedding hole is larger than the radius of the rolling body, and the size of the opening is smaller than the diameter of the rolling body.

2. The retainer-less ball bearing according to claim 1, wherein:

the shape of the embedding hole is matched with that of the rolling body.

3. The retainer-less ball bearing according to claim 1, wherein:

the depth of the embedding hole is 0.01-0.03 mm larger than the radius of the rolling body.

4. The retainer-less ball bearing according to claim 1, wherein:

the embedding holes are arranged on the inner wall of the outer ring at equal intervals.