High-strength bearing ring

Abstract

The utility model discloses a high-strength bearing ring. The high-strength bearing ring comprises a ring body, a ball groove, sealing grooves and a dustproof groove are formed in the inner side face of the ferrule body, the sealing grooves are distributed in the two sides of the ball groove, and the dustproof groove is located between the sealing grooves and the ball groove. According to the utility model, the service life of the bearing ring can be prolonged, and the stability and reliability of the bearing ring in use are improved.

Description

Technical Field

[0001] The utility model relates to a high-strength bearing ring. Background Art

[0002] Bearing rings are annular parts of centripetal rolling bearings with one or more raceways. They are generally produced through forging, heat treatment, grinding and other processes. When installing bearing rings, special attention should be paid to the installation sequence. For precision bearings, attention should also be paid to the positive and negative ends. If installed upside down, it will cause dynamic imbalance and affect the performance of the bearing.

[0003] Due to structural design defects of the bearing rings in the prior art, dust easily enters the bearing rings, which increases the friction when the balls roll, shortens the service life of the bearing rings, and increases noise. Utility Model Content

[0004] The purpose of the utility model is to provide a technical solution for a high-strength bearing ring to address the deficiencies in the prior art, which can not only extend the service life of the bearing ring, but also improve the stability and reliability of the bearing ring during use.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A high-strength bearing ring comprising

[0007] a ferrule body;

[0008] Its characteristics are:

[0009] The inner side of the ring body is provided with a ball groove, a sealing groove and a dustproof groove. The sealing grooves are distributed on both sides of the ball groove, and the dustproof groove is located between the sealing groove and the ball groove. Through the design of the above structure, not only the service life of the bearing ring can be extended, but also the stability and reliability of the bearing ring during use are improved.

[0010] Furthermore, the diameter of the ball groove is S, 31.28 mm < S < 31.34 mm.

[0011] Furthermore, the radius of the arc surface of the ball groove is R5, 3.11 mm<R5<3.14 mm.

[0012] Furthermore, first transition surfaces are symmetrically provided at both ends of the arc surface of the ball groove, and the length of the first transition surface is L2, 0.4mm<L2<0.5mm, and the height is H2, 0.15mm<H2<0.25mm.

[0013] Furthermore, the arc chamfer radius of the first transition surface is R4, 1.27 mm < R4 < 1.33 mm.

[0014] Furthermore, a second transition surface is provided on the outer side surface of the ferrule body. The length of the second transition surface is L1, 1.3mm<L1<1.8mm, and the height is H1, 0.76mm

[0015] Furthermore, the arc chamfer radius of the second transition surface is R1, 0.97 mm < R1 < 1.23 mm.

[0016] Furthermore, arc chamfers with radii R2 and R3 are provided at both ends of the dustproof groove, respectively, and 0.16mm<R2<0.24mm, 0.21mm<R3<0.25mm.

[0017] Furthermore, the sealing groove is provided with an inclined surface, and the angle between the inclined surface and the vertical direction is a, 41°<a<45°.

[0018] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0019] The utility model can not only prolong the service life of the bearing ring, but also improve the stability and reliability of the bearing ring during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a structural diagram of a high-strength bearing ring of the utility model;

[0022] Figure 2 for Figure 1 A magnified view of the layout at point Ⅰ in the middle;

[0023] Figure 3 for Figure 1 A magnified view of the layout at center II;

[0024] Figure 4 for Figure 1 Enlarged view of the layout at point III.

[0025] In the figure: 1-ring body; 2-ball groove; 3-sealing groove; 4-dustproof groove; 5-inclined surface. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] ​In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first," "second," and so on in the specification and claims of this utility model and the aforementioned drawings are used to distinguish similar items and are not necessarily used to describe a specific order or precedence. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0029] like Figures 1 to 4 As shown, a high-strength bearing ring of the present invention includes a ring body 1. The outer side surface of the ring body 1 is provided with a second transition surface. The length of the second transition surface is L1, 1.3mm<L1<1.8mm, and the height is H1, 0.76mm

[0030] The arc chamfer radius of the second transition surface is R1, 0.97 mm < R1 < 1.23 mm.

[0031] The inner side surface of the ring body 1 is provided with a ball groove 2, a sealing groove 3 and a dustproof groove 4.

[0032] The diameter of the ball groove 2 is S, 31.28 mm < S < 31.34 mm.

[0033] The radius of the arc surface of the ball groove 2 is R5, 3.11 mm<R5<3.14 mm.

[0034] The first transition surfaces are symmetrically provided at both ends of the arc surface of the ball groove 2 . The length of the first transition surface is L2, 0.4mm<L2<0.5mm, and the height is H2, 0.15mm<H2<0.25mm.

[0035] The arc chamfer radius of the first transition surface is R4, 1.27 mm < R4 < 1.33 mm.

[0036] The sealing grooves 3 are distributed on both sides of the ball groove 2 .

[0037] The sealing groove 3 is provided with an inclined surface 5 , and the angle between the inclined surface 5 and the vertical direction is a, 41°<a<45°.

[0038] ​The dustproof groove 4 is located between the sealing groove 3 and the ball groove 2; through the design of the above structure, not only the service life of the bearing ring can be extended, but also the stability and reliability of the bearing ring during use can be improved.

[0039] Both ends of the dustproof groove 4 are provided with arc chamfers with radii R2 and R3, respectively, 0.16mm<R2<0.24mm, 0.21mm<R3<0.25mm.

[0040] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements, or modifications based on the present invention to achieve substantially the same technical effects are included within the scope of protection of the present invention.

Claims

1. A high-strength bearing ring, comprising a ferrule body; Its characteristics are: The inner side surface of the ring body is provided with a ball groove, a sealing groove and a dustproof groove, the sealing groove is distributed on both sides of the ball groove, and the dustproof groove is located between the sealing groove and the ball groove.

2. A high-strength bearing ring according to claim 1, characterized in that: The diameter of the ball groove is S, 31.28 mm < S < 31.34 mm.

3. The high-strength bearing ring according to claim 1, characterized in that: The arc surface radius of the ball groove is R5, 3.11mm<R5<3.14mm.

4. A high-strength bearing ring according to claim 3, characterized in that: First transition surfaces are symmetrically provided at both ends of the arc surface of the ball groove, and the length of the first transition surface is L2, 0.4mm<L2<0.5mm, and the height is H2, 0.15mm<H2<0.25mm.

5. A high-strength bearing ring according to claim 4, characterized in that: The arc chamfer radius of the first transition surface is R4, 1.27 mm < R4 < 1.33 mm.

6. The high-strength bearing ring according to claim 1, characterized in that: A second transition surface is provided on the outer side surface of the ferrule body. The length of the second transition surface is L1, 1.3mm<L1<1.8mm, and the height is H1, 0.76mm<H1<1.06mm.

7. The high-strength bearing ring according to claim 6, characterized in that: The arc chamfer radius of the second transition surface is R1, 0.97 mm < R1 < 1.23 mm.

8. The high-strength bearing ring according to claim 1, characterized in that: Both ends of the dustproof groove are respectively provided with arc chamfers with radii R2 and R3, 0.16mm<R2<0.24mm, 0.21mm<R3<0.25mm.

9. The high-strength bearing ring according to claim 1, characterized in that: The sealing groove is provided with an inclined surface, and the angle between the inclined surface and the vertical direction is a, 41°<a<45°.

Images