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Overall four-point contact ball bearing with seal

A four-point contact with sealing technology, applied in the direction of ball bearings, bearing components, shafts and bearings, etc., can solve the problems of poor sealing performance, large contact area, heat generation and noise, etc., achieve good sealing performance, reduce contact area, Effect of reducing noise and heat

Inactive Publication Date: 2014-08-27
LUOYANG PRECISION OF MACHINE EQUIP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The retainer is guided by the rib of the inner ring. Its contact area is large, and it is easy to generate heat and noise caused by friction. The sealing ring is non-contact, and grease leakage will occur when the bearing rotates. The sealing performance is poor and cannot meet the requirements. Existing equipment requires high rigidity, long life, high rotation accuracy, multi-angle changes, and quiet operation of the bearings

Method used

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  • Overall four-point contact ball bearing with seal
  • Overall four-point contact ball bearing with seal
  • Overall four-point contact ball bearing with seal

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Embodiment Construction

[0025] Specific embodiments of the present invention are described with reference to the accompanying drawings.

[0026] as attached figure 1 Shown: its parts of bearing of the present invention comprise: outer ring 1, inner ring 2, steel ball 3, cage 4, retaining ring 5, sealing ring 6, screw 7.

[0027] The contact angle α and α1 of the bearing are designed to be 45°. The design of this angle is to enable the bearing to bear high combined axial and radial loads and large overturning moment at the same time; the bearing adopts negative clearance and has good rigidity The load carrying capacity of the bearing can be improved, and the use of negative clearance can also make the bearing run smoothly; the structure guided by rolling elements reduces the contact area and reduces the noise and heat generated by friction.

[0028] as attached figure 2 , image 3 As shown: the inner wall of the outer ring 1 is provided with an outer ring raceway 8, and the outer ring raceway 8 c...

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Abstract

The invention discloses an overall four-point contact ball bearing with a seal. The overall four-point contact ball bearing comprises an outer ring, an inner ring, a steel ball, a retainer, a retainer ring, a sealing ring and a screw, wherein a contact angle of the bearing is 45 degrees; the bearing has a negative play; steps are arranged in two end faces of the outer ring; screw holes connected with the retainer ring are uniformly formed in the circumference of each stepped surface; outer ring roller paths (8) with the same diameters and curvatures are formed in the circumference of the inner wall of the outer ring; sealing grooves are respectively formed in two flanges of the inner ring; the labyrinth seal is formed between the two flanges of the inner ring and the inner diameters of the two retainer rings; oil holes are formed in the inner diameter surface of the inner ring; inner ring roller paths opposite to the outer ring roller paths are formed in the circumference of the outer wall of the outer ring. The overall four-point contact ball bearing has the characteristics of being compact in structure, high in reliability, high in sealing performance, good in mounting performance, free from maintenance and the like, can simultaneously bear high axial and radial combined loads, and is high in upsetting moment and wide in service condition range.

Description

technical field [0001] The invention relates to a four-point contact ball bearing, and mainly relates to a structural form of a sealed integral four-point contact ball bearing. Background technique [0002] As is known, the current large-scale precision equipment, such as: accelerators of medical equipment, radar scanning locators, etc., the bearings of the four-point contact ball structure used on the main shaft mainly consist of the following two types: [0003] The first four-point contact ball structure is composed of an outer ring, two inner rings, steel balls, nylon spacers, sealing rings and screws. The outer ring, two inner rings and steel balls are made of bearing steel, and the two inner rings are connected by screws when the bearing parts are assembled. The bearing mainly bears radial load, axial load and overturning moment, and is suitable for high and medium speed operating conditions. However, bearings with such a structure have poor installation performance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/16F16C33/80F16C33/78F16C33/58F16C33/38
Inventor 王景夏
Owner LUOYANG PRECISION OF MACHINE EQUIP TECH CO LTD
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