Thin-walled bearing with monolithic cage

Abstract

The utility model provides a thin-wall type bearing with a single-piece type retainer, which comprises the single-piece type retainer which is arranged between an outer ring and an inner ring and used for retaining a steel ball, the single-piece type retainer is formed into a continuous ring shape, one side of the single-piece type retainer extends along the axial direction to form a plurality of bag walls which are arranged at intervals, and the bag walls are arranged on the outer ring and the inner ring. A bag for accommodating a steel ball is formed by the adjacent bag walls and comprises a first bag, and the minimum distance between the adjacent bag walls of the first bag is larger than the diameter of the steel ball. The single-piece type retainer is designed to be of a continuous annular structure and is provided with a plurality of bag walls which are spaced from one another, so that the steel balls 3 can be effectively separated, and the steel balls 3 are prevented from colliding with one another and being damaged in the pressing-in process. The minimum distance between the adjacent bag walls is larger than the diameter of the steel ball 3, so that the steel ball 3 is prevented from being excessively extruded or damaged in the pressing-in process.

Description

Technical Field

[0001] The utility model relates to a thin-wall bearing with a single-piece retainer. Background Art

[0002] Thin-walled bearings are specially designed bearings with a very small inner diameter relative to the outer diameter and a relatively thin thickness. Such bearings are usually made of metal materials such as steel or stainless steel, but other materials such as plastics can also be used.

[0003] The cage of a bearing is a component used to support and position the rolling elements of the bearing (such as balls or rollers). It is located between the rolling elements to separate and keep them in the correct position. In applications where additional support and stability are required, thin-walled bearings can be equipped with a single-piece cage to enhance the structural strength and stability of the bearing. Such a cage is usually designed as part of the thin-walled bearing to ensure the stability and reliability of the entire bearing system.

[0004] However, there is a risk of damaging the bearing components during the process of pressing the steel balls into the cage. If the pressure applied is inappropriate or too high, it may cause the cage or steel balls to deform or break, thus affecting the performance and life of the bearing. Once the steel balls are pressed into the cage, maintenance or replacement may be more difficult because the steel balls need to be removed from the cage, which may require special tools or techniques. Utility Model Content

[0005] The purpose of the utility model is to provide a thin-walled bearing with a single-piece retainer, which can reduce the risk caused by the steel ball being pressed into the retainer and facilitate maintenance.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A thin-walled bearing with a monolithic retainer comprises: a monolithic retainer, arranged between an outer ring and an inner ring, for retaining steel balls, the monolithic retainer being formed into a continuous ring, one side of the monolithic retainer extending along an axial direction to form a plurality of pocket walls spaced apart from each other, adjacent pocket walls forming pockets for accommodating steel balls, the pockets comprising a first pocket whose minimum distance between adjacent pocket walls is greater than the diameter of the steel ball.

[0008] Preferably, the bag wall includes a crescent-shaped bag wall, and adjacent crescent-shaped bag walls are bent toward each other to form a second bag having a cylindrical space in the radial direction. After the steel ball is installed into the second bag in the radial direction, it is retained in the cylindrical space formed by the second bag and blocked by the end of the crescent-shaped bag wall in the axial direction.

[0009] Preferably, adjacent crescent-shaped pocket walls form the first pocket when they are bent in the opposite direction.

[0010] Preferably, the bag wall further includes an upright bag wall, both sides of which have wall surfaces parallel to each other and to the axial direction, and the upright bag wall is used to form the first bag together with the adjacent crescent-shaped bag wall.

[0011] Preferably, the one-piece retainer is formed from polyamide 66 reinforced with 25% glass fiber.

[0012] In summary, the single-piece retainer is designed as a continuous annular structure and has a plurality of pocket walls with intervals between each other, which can effectively separate each steel ball 3 to prevent them from colliding with each other and being damaged during the pressing process. The setting that the minimum distance between adjacent pocket walls is greater than the diameter of the steel ball 3 ensures that the steel ball 3 will not be overly squeezed or damaged during the pressing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 , is an exploded schematic diagram of a thin-walled bearing with a monolithic retainer according to an embodiment of the utility model.

[0014] Figure 2 , is a schematic structural diagram of a single-piece retainer according to an embodiment of the present invention.

[0015] Figure 3 , is a schematic structural diagram of a single-piece retainer according to an embodiment of the utility model when a steel ball is embedded. DETAILED DESCRIPTION

[0016] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings.

[0017] Figure 1 This is an exploded schematic diagram of a thin-walled bearing with a single-piece retainer according to an embodiment of the utility model. Figure 2 This is a schematic structural diagram of a single-piece retainer according to an embodiment of the utility model. Figure 3 , is a schematic diagram of the structure of a single-piece retainer according to an embodiment of the present invention when a steel ball is embedded. Figures 1 to 3 As shown, the thin-walled bearing with a monolithic retainer involved in this embodiment includes: a monolithic retainer 1, which is arranged between an outer ring 2 and an inner ring 4, and is used to retain a steel ball 3. The monolithic retainer 1 is formed into a continuous ring, and one side of the monolithic retainer 1 extends along the axial direction Z to form a plurality of pocket walls with intervals between each other, and adjacent pocket walls form pockets for accommodating the steel ball 3, and the pockets include a first pocket 13 whose minimum distance between adjacent pocket walls is greater than the diameter of the steel ball 3.

[0018] The single-piece retainer 1 is designed as a continuous annular structure and has a plurality of pocket walls with intervals between them. This design can effectively separate each steel ball 3 to prevent them from colliding with each other and being damaged during the pressing process. In addition, the minimum distance between adjacent pocket walls is greater than the setting of the diameter of the steel ball 3 (the first pocket 13), ensuring that the steel ball 3 will not be over-extruded or damaged during the pressing process (see the attached Figure 2 ).

[0019] The design of the one-piece retainer 1 makes it easier to maintain and replace the steel balls 3. Since at least a portion of the steel balls 3 are placed in the first pocket, it is only necessary to remove the damaged or replaced steel balls from the corresponding pockets without removing the entire retainer. This design simplifies the maintenance process and reduces the need for special tools or techniques (see Appendix 1). Figure 3 ).

[0020] Furthermore, the bag wall includes a crescent-shaped bag wall 11, and adjacent crescent-shaped bag walls 11 are bent toward each other to form a second bag 14 having a cylindrical space in the radial direction R. After the steel ball is installed in the second bag 14 in the radial direction R, it is retained in the cylindrical space surrounded by the second bag 14 and blocked by the end of the crescent-shaped bag wall 11 in the axial direction Z. The second bag 14 can also be called a round bag, and the first bag 13 can also be called a square bag. Of course, in other embodiments, the first bag can also be other shapes.

[0021] Furthermore, adjacent crescent-shaped pocket walls 11 form a first pocket 13 when they are bent in the opposite direction.

[0022] Furthermore, the bag wall also includes an upright bag wall 12 , and both sides of the upright bag wall 12 have wall surfaces that are parallel to each other and parallel to the axial direction Z. The upright bag wall 12 is used to form a first bag 13 together with the adjacent crescent-shaped bag wall 11 .

[0023] In this embodiment, the pouches include 11 second pouches 14 and 12 first pouches 13. Since the number of second pouches is odd, the upright pouch wall 12 and the adjacent crescent-shaped pouch wall 11 need to form two adjacent first pouches 13.

[0024] In other embodiments, there may be more upright bladder walls 12 .

[0025] Furthermore, the one-piece cage 1 is formed from polyamide 66 reinforced with 25% glass fibers.

[0026] When the adjacent pocket walls are bent toward each other, a second pocket 14 with cylindrical spaces in the radial direction R is formed. When the steel balls are pressed into the bearing, they are installed into these cylindrical spaces, thereby providing additional support and positioning to prevent the steel balls from colliding with each other or deforming during the pressing process.

[0027] The end of the crescent-shaped bag wall 11 forms a blocking effect in the axial direction Z, which can effectively control the axial position of the steel ball to prevent it from exceeding a set range, thereby reducing the risk of damage that may occur during the pressing process.

[0028] The wall surface of the upright bladder wall 12 is parallel to the axial direction Z and forms a first bladder 13 together with the crescent-shaped bladder wall 11. This design provides additional support and positioning, and enhances the stability and reliability of the bearing structure.

[0029] The one-piece cage 1 is formed of 25% glass fiber reinforced polyamide 66. This material has good strength and wear resistance, can withstand high pressure and high speed application environment, and also has a low friction coefficient, which helps to reduce the friction loss and energy consumption of the bearing.

[0030] The above contents are only preferred embodiments of the present invention and cannot limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope defined in the claims of the present invention should still fall within the protection scope of the present invention.

Claims

1. A thin-walled bearing with a single-piece retainer, characterized in that: Include: The single-piece cage is set between the outer ring and the inner ring to hold the steel balls. The one-piece retainer is formed into a continuous ring shape, One side of the single-piece retainer extends along the axial direction to form a plurality of bag walls spaced apart from each other. A bag for accommodating a steel ball is formed adjacent to the bag wall. The bladder bag includes a first bladder bag having a minimum distance between adjacent bladder bag walls that is greater than the diameter of the steel ball.

2. The thin-walled bearing with a one-piece retainer according to claim 1, characterized in that: The capsule wall comprises a crescent-shaped capsule wall, The adjacent crescent-shaped pouch walls are bent toward each other to form a second pouch having a cylindrical space in the radial direction. After the steel ball is installed into the second bag in the radial direction, it is retained in the cylindrical space surrounded by the second bag and blocked by the end of the crescent-shaped bag wall in the axial direction.

3. The thin-walled bearing with a one-piece retainer according to claim 2, characterized in that: The adjacent crescent-shaped pocket walls form the first pocket when they are bent in opposite directions.

4. The thin-walled bearing with a one-piece retainer according to claim 3, characterized in that: The capsule wall also includes an upright capsule wall, and both sides of the upright capsule wall have wall surfaces that are parallel to each other and parallel to the axial direction. The upright pouch wall is used to form the first pouch together with the adjacent crescent-shaped pouch wall.

5. The thin-walled bearing with a one-piece retainer according to claim 1, characterized in that: The one-piece cage is formed from polyamide 66 reinforced with 25% glass fibers.

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