Low-noise high-bearing-capacity deep groove ball bearing
By opening a third raceway and setting a second ball on the inner sidewall of the base, optimizing the ball loading notch of the inner ring, and combining it with graphite-based elastic gaskets, the problems of insufficient load-bearing capacity and high noise of traditional deep groove ball bearings under high load and high temperature are solved, achieving the effect of low noise and high load-bearing capacity.
Patent Information
- Application Number
- CN202520590076.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Traditional deep groove ball bearings are prone to excessive contact stress between the balls and raceways when subjected to high radial and axial loads, leading to material fatigue, accelerated wear, and high noise at high speeds, which affects the operating environment and precision of the equipment.
A third raceway is opened on the inner sidewall of the base, and multiple second balls are set to form an additional bearing layer and increase the bearing area; a first ball loading notch is set on the inner ring to optimize the contact stability of the balls; graphite-based elastic gaskets are used to reduce friction and wear and absorb thermal expansion differences.
It significantly improves the bearing's load-bearing capacity, reduces noise, extends service life, and maintains reliability in high-temperature environments.
Smart Images
Figure CN223676804U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing technical field especially relates to a low noise high bearing deep groove ball bearing. BACKGROUND
[0002] Bearing is the component for supporting rotating shaft in mechanical equipment, and its main function is to reduce friction and abrasion in rotating process, and at the same time, it bears axial and radial load, and the low noise high bearing deep groove ball bearing is a bearing specially designed to significantly reduce operating noise while maintaining high bearing capacity.
[0003] There are still some problems in the use process of the existing low noise high bearing deep groove ball bearing, the traditional deep groove ball bearing is easy to appear the contact stress between the ball and the raceway when bearing high radial and axial load, which leads to material fatigue, aggravation of abrasion, even plastic deformation or fracture, and the friction and impact between the ball and the raceway will produce larger noise when the traditional deep groove ball bearing is running at high speed, which affects the operation environment and precision of the equipment, therefore, the low noise high bearing deep groove ball bearing is provided by the person skilled in the art to solve the problems in the background art. SUMMARY
[0004] The utility model discloses a low noise high bearing deep groove ball bearing is provided to solve the problems in the background art, and the third raceway is formed in the inner side wall of the base, and a plurality of second balls are arranged in it, which forms an additional bearing layer, significantly increases the bearing area of the bearing, disperses the load, and improves the overall bearing capacity of the bearing.
[0005] To achieve the above object, the utility model provides the following technical scheme: a low noise high bearing deep groove ball bearing, which comprises an inner ring, an outer ring, two retainers and a plurality of first balls, the plurality of first balls are arranged between the inner ring and the outer ring, the two retainers are arranged at the upper and lower ends of the plurality of first balls respectively, and the outer side of the inner ring is provided with an outer layer.
[0006] The outer layer comprises a base, the inner ring and the outer ring are arranged inside the base, a third raceway is formed in the center of the inner side wall of the base, a second ball loading gap is formed in the inner wall of the third raceway, and a plurality of second balls are arranged in the third raceway.
[0007] Through the above technical scheme, the third raceway is formed in the inner side wall of the base, and a plurality of second balls are arranged in it, which forms an additional bearing layer, significantly increases the bearing area of the bearing, disperses the load, and improves the overall bearing capacity of the bearing.
[0008] Further, a first ball loading aperture is arranged at one side of the upper end face of the inner ring, and the first ball loading aperture penetrates the upper end face of the inner ring and reaches the upper inner wall of the first raceway;
[0009] By the above technical scheme, the first ball is more stable in contact with the first raceway and the second raceway during operation by arranging the first ball loading aperture on the inner ring and optimizing the position and depth of the first ball loading aperture, so that friction and impact are reduced, and noise is reduced.
[0010] Further, the first raceway is arranged at the center of the outer side wall of the inner ring, the second raceway is arranged at the center of the inner side wall of the outer ring, and the first raceway and the second raceway are internally provided with gaskets;
[0011] By the above technical scheme, the friction and wear between the first ball and the first raceway and the second raceway are reduced, and the service life of the bearing is prolonged.
[0012] Further, the material of the two gaskets is graphite-based elastic pad;
[0013] By the above technical scheme, the graphite-based elastic pad has good elastic deformation capacity, can absorb the thermal expansion difference between the inner ring and the outer ring when the temperature changes, reduce stress concentration and deformation, the elastic compensation effect of the graphite-based elastic pad can keep the stability of the bearing internal clearance, ensure the good contact between the first ball and the first raceway and the second raceway, and thus improve the carrying capacity and reliability of the bearing in high temperature environment.
[0014] The utility model has the following beneficial effects:
[0015] 1、 the utility model discloses a low noise high bearing deep groove ball bearing is through setting up third raceway in the inner side wall of base, and setting up a plurality of second ball in it, has formed additional bearing layer, has increased the bearing area of bearing significantly, has dispersed load to improve the overall carrying capacity of bearing.
[0016] 2、 the utility model discloses a first ball loading aperture is arranged on the inner ring, and the position and depth of the first ball loading aperture are optimized, so that the first ball is more stable in contact with the first raceway and the second raceway during operation, so that friction and impact are reduced, and noise is reduced.
[0017] 3、 The graphite itself is an excellent solid lubricant, can form a stable lubricating film on the friction surface, reduce the friction coefficient and wear, the self-lubricating property of the graphite-based elastic pad can continuously provide lubrication, reduce the friction and wear between the first ball and the first raceway and the second raceway, prolong the service life of the bearing, the graphite-based elastic pad has good elastic deformation capacity, can absorb the thermal expansion difference between the inner ring and the outer ring when the temperature changes, reduce stress concentration and deformation, the elastic compensation effect of the graphite-based elastic pad can keep the stability of the bearing internal clearance, ensure the good contact between the first ball and the first raceway and the second raceway, thereby improving the carrying capacity and reliability of the bearing in high temperature environment. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 A perspective view of a low-noise high-load deep groove ball bearing is provided for the utility model;
[0019] Figure 2 A perspective view of a low-noise high-load deep groove ball bearing is provided for the utility model;
[0020] Figure 3 A perspective view of a low-noise high-load deep groove ball bearing is provided for the utility model;
[0021] Figure 4 For Figure 2 The enlarged schematic view of A in the middle.
[0022] Legend:
[0023] 1, inner ring; 2, outer ring; 3, outer layer; 301, base; 302, second ball; 303, second ball opening; 304, third raceway; 4, first ball; 5, retainer; 6, first raceway; 7, first ball opening; 8, gasket; 9, second raceway. DETAILED DESCRIPTION
[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0025] Referring to Figures 1-4 , the utility model provides an embodiment: a low-noise high-load deep groove ball bearing, comprising inner ring 1, outer ring 2, two retainers 5 and a plurality of first balls 4, a plurality of first balls 4 are arranged between inner ring 1 and outer ring 2, two retainers 5 are arranged at the upper and lower ends of a plurality of first balls 4 respectively, and inner ring 1 is provided with outer layer 3 on the outer side.
[0026] The outer layer 3 comprises a base 301, the inner ring 1 and the outer ring 2 are arranged inside the base 301, a third raceway 304 is arranged at the center of the inner wall of the base 301, a second ball loading gap 303 is arranged at the inner wall of the third raceway 304, and a plurality of second balls 302 are arranged in the third raceway 304. By arranging the third raceway 304 in the inner wall of the base 301 and arranging the plurality of second balls 302 in the third raceway 304, an additional load bearing layer is formed, the load bearing area of the bearing is significantly increased, the load is dispersed, and thus the overall load bearing capacity of the bearing is improved.
[0027] As shown in Figure 1 , 2 As shown in Figs. 1 and 3, a first ball loading gap 7 is arranged at one side of the upper end face of the inner ring 1, and the first ball loading gap 7 penetrates the upper end face of the inner ring 1 and reaches the upper inner wall of the first raceway 6. By arranging the first ball loading gap 7 on the inner ring 1 and optimizing the position and depth of the first ball loading gap 7, the contact between the first ball 4 and the first raceway 6 and the second raceway 9 during operation is more stable, the friction and impact are reduced, and thus the noise is reduced.
[0028] As shown in Figure 2 and 4 As shown in Figs. 1 and 3, a first raceway 6 is arranged at the center of the outer wall of the inner ring 1, and a second raceway 9 is arranged at the center of the inner wall of the outer ring 2. The first raceway 6 and the second raceway 9 are both provided with a gasket 8, which reduces the friction and wear between the first ball 4 and the first raceway 6 and the second raceway 9, and prolongs the service life of the bearing.
[0029] The materials of the two gaskets 8 are graphite-based elastic pads. The graphite-based elastic pad has good elastic deformation capacity, can absorb the thermal expansion difference between the inner ring 1 and the outer ring 2 when the temperature changes, reduces stress concentration and deformation, and the elastic compensation effect of the graphite-based elastic pad can keep the stability of the internal clearance of the bearing, ensure the good contact between the first ball 4 and the first raceway 6 and the second raceway 9, and thus improve the load bearing capacity and reliability of the bearing in a high temperature environment.
[0030] Working principle: By arranging the third raceway 304 in the inner wall of the base 301 and arranging the plurality of second balls 302 in the third raceway 304, an additional load bearing layer is formed, the load bearing area of the bearing is significantly increased, the load is dispersed, and thus the overall load bearing capacity of the bearing is improved. By arranging the first ball loading gap 7 on the inner ring 1 and optimizing the position and depth of the first ball loading gap 7, the contact between the first ball 4 and the first raceway 6 and the second raceway 9 during operation is more stable, the friction and impact are reduced, and thus the noise is reduced.
[0031] The graphite itself is an excellent solid lubricant, which can form a stable lubricating film on the friction surface, reduce the friction coefficient and wear, the self-lubricating property of the graphite-based elastic pad can continuously provide lubrication, reduce the friction and wear between the first rolling ball 4 and the first raceway 6 and the second raceway 9, prolong the service life of the bearing, the graphite-based elastic pad has good elastic deformation capacity, which can absorb the thermal expansion difference between the inner ring 1 and the outer ring 2 when the temperature changes, reduce stress concentration and deformation, the elastic compensation effect of the graphite-based elastic pad can keep the stability of the bearing internal clearance, ensure the good contact between the first rolling ball 4 and the first raceway 6 and the second raceway 9, thereby improving the load-carrying capacity and reliability of the bearing in a high-temperature environment.
[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.
Claims
1. A low noise high load deep groove ball bearing, comprising an inner ring (1), an outer ring (2), two retainers (5) and a plurality of first balls (4), the plurality of first balls (4) being disposed between the inner ring (1) and the outer ring (2), the two retainers (5) being respectively disposed at upper and lower ends of the plurality of first balls (4), characterized in that: The inner ring (1) is provided with an outer layer (3) on the outside; The outer layer (3) comprises a base (301), the inner ring (1) and the outer ring (2) are arranged inside the base (301), a third raceway (304) is arranged at the center of the inner wall of the base (301), a second ball loading gap (303) is arranged on the inner wall of the third raceway (304) on one side, and a plurality of second balls (302) are arranged inside the third raceway (304).
2. A low noise high load deep groove ball bearing according to claim 1, characterized in that: A first ball loading gap (7) is arranged on one side of the upper end face of the inner ring (1), and the first ball loading gap (7) penetrates the upper end face of the inner ring (1) and reaches the upper inner wall of the first raceway (6).
3. A low noise high load deep groove ball bearing according to claim 1, characterized in that: The center of the outer wall of the inner ring (1) is provided with a first raceway (6), the center of the inner wall of the outer ring (2) is provided with a second raceway (9), and the interiors of the first raceway (6) and the second raceway (9) are both provided with a gasket (8).
4. A low noise high load deep groove ball bearing according to claim 3, characterized in that: The materials of the two gaskets (8) are graphite-based elastic pads.