Two-row ball bearing with two-side channels bearing different loads

Abstract

The utility model relates to the technical field of bearing product production, in particular to a two-row ball bearing with different bearing capacity of double-side channels, which comprises an outer ring, a first inner ring, a second inner ring, a first steel ball, a second steel ball, a first retainer and a second retainer, the first steel ball and the first retainer are arranged between the outer ring and the first inner ring, and the second steel ball and the second retainer are arranged between the outer ring and the second inner ring. The bearing has the advantages that the internal stress condition of the bearing is improved, the service life of the bearing is prolonged, the bearing capacity of the bearing is improved, installation errors are avoided, and the situation that the bearing fails in advance is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing product production, in particular to a double-row ball bearing with double-side grooves having different loads. Background Art

[0002] Double-row ball bearings with traditional structures have consistent groove parameters on both sides. When one side has to bear a large radial load and the other side has to bear a large axial load, this structure is not suitable and early fatigue will occur, causing bearing failure.

[0003] The parameters of the grooves on both sides are consistent. When one side bears a large load and the other side bears a smaller load, or when there is a large deviation between the wheel center and the bearing center, the bearing capacity of the two internal grooves is uneven, and early fatigue may occur, causing bearing failure. Summary of the invention

[0004] The utility model aims to provide a double-row ball bearing with different bearings in the double-side grooves, so as to solve the problems of bearing failure caused by early fatigue proposed in the above technical background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-row ball bearing with different loads on both sides of the groove, including an outer ring, an inner ring one, an inner ring two, a steel ball one, a steel ball two, a retainer one, and a retainer two. Steel ball one and retainer one are arranged between the outer ring and the inner ring one, steel ball two and retainer two are arranged between the outer ring and the inner ring two, and sealing assemblies composed of sealing rings and dust covers are arranged at both ends of the outer ring.

[0006] Furthermore, the outer ring is provided with a groove with different parameters on the left and right sides, the contact angle of the left groove is different from the contact angle of the right groove, and the contact angle of the left side is smaller than the contact angle of the right side.

[0007] Furthermore, the outer ring is provided with different grooves for steel balls on the left and right sides, and the number, diameter and curvature coefficient of steel balls on both sides are different, as well as different groove diameter designs. The number and diameter of steel balls on the right side are greater than those on the left side, and the curvature coefficient of the right channel is less than that of the left channel.

[0008] Furthermore, a guide groove for distinguishing the installation direction of the bearing is provided on the left outer diameter of the outer ring.

[0009] Furthermore, the retainer 1 and the retainer 2 adopt a semi-bowl-shaped structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a front view of a double-row ball bearing with different loads in the double-side grooves of the utility model;

[0011] Figure 2 This is a view of the outer ring of a double-row ball bearing with different bearings on both sides of the groove of the utility model;

[0012] Figure 3 This is a view A of the inner ring of a double-row ball bearing with different bearings on both sides of the groove of the utility model;

[0013] Figure 4 This is a view B of the inner ring of a double-row ball bearing with different bearings on both sides of the groove of the utility model;

[0014] Figure 5 This is a view of a retainer A of a double-row ball bearing with different bearings on both sides of the groove of the utility model;

[0015] Figure 6 This is a view of a retainer B of a double-row ball bearing with different bearings on both sides of the groove of the utility model;

[0016] The accompanying drawings are numbered as follows:

[0017] Figure 1 01-outer ring, 021-inner ring one, 022-inner ring two, 031-steel ball one, 032-steel ball two, 041-cage one, 042-cage two, 05-seal ring, 06-dust cover, Figure 2 011-Guide groove in. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] refer to Figure 1-6 A double-row ball bearing with different loads in double-sided grooves, including an outer ring 01, an inner ring 021, an inner ring 022, a steel ball 031, a steel ball 032, a retainer 041, and a retainer 042. Steel ball 031 and retainer 041 are provided between the outer ring 01 and the inner ring 021, steel ball 032 and retainer 042 are provided between the outer ring 01 and the inner ring 022, and sealing assemblies composed of sealing rings 05 and dust covers 06 are provided at both ends of the outer ring 01.

[0020] The outer ring 01 is provided with grooves with different parameters on the left and right sides. The contact angle of the left groove is different from that of the right groove. The left contact angle is smaller than the right contact angle. The larger contact angle on the right side can withstand higher axial forces, while the smaller contact angle on the left side can withstand higher radial forces, thereby improving the internal stress conditions of the bearing and increasing the bearing life.

[0021] The outer ring 01 is provided with different grooves for steel balls on the left and right sides. The number, diameter and curvature coefficient of steel balls on both sides are different, as well as different groove diameter designs. The number, diameter and groove diameter of steel balls on the right side are larger than those on the left side, and the curvature coefficient of the right channel is smaller than that of the left channel. The right side has a large number of steel balls, a large steel ball diameter and a relatively small curvature coefficient, which can withstand a larger load and increase the bearing capacity.

[0022] A step 011 is provided on the outer diameter of the outer ring 01 to distinguish the installation direction of the bearing, to mark the different internal structures on both sides of the bearing, to guide the installation, and to avoid installation errors that may cause premature failure of the bearing.

[0023] Cage 1 041 and cage 2 042 adopt a semi-bowl-shaped structure, which is convenient for steel ball assembly, does not require other special tooling and molds, and has the functions of saving space and storing oil between steel balls.

[0024] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A double-row ball bearing with different bearings on both sides of the groove, comprising an outer ring (01), an inner ring 1 (021), an inner ring 2 (022), a steel ball 1 (031), a steel ball 2 (032), a retainer 1 (041), and a retainer 2 (042), characterized in that: A steel ball (031) and a retaining frame (041) are provided between the outer ring (01) and the inner ring (021), a steel ball (032) and a retaining frame (042) are provided between the outer ring (01) and the inner ring (022), and a sealing assembly composed of a sealing ring (05) and a dust cover (06) is provided at both ends of the outer ring (01); The outer ring (01) is provided with a groove with different parameters on the left and right sides, the contact angle of the left groove is different from the contact angle of the right groove, and the contact angle of the left side is smaller than the contact angle of the right side; The outer ring (01) is provided with different grooves for left and right steel balls. The number, diameter and curvature coefficient of the steel balls on the two sides are different, and the groove diameter design is different. The number, diameter and groove diameter of the steel balls on the right side are greater than those on the left side, and the curvature coefficient of the right groove is less than that of the left groove.

2. A double-row ball bearing with different bearings on both sides of the groove according to claim 1, characterized in that: A guide groove (011) for distinguishing the installation direction of the bearing is provided on the left outer diameter of the outer ring (01).

3. A double-row ball bearing with different bearings on both sides of the groove according to claim 2, characterized in that: The retainer 1 (041) and the retainer 2 (042) adopt a half-bowl-shaped structure.

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