Double-lip sealing type four-point contact ball turntable bearing

A four-point contact, slewing bearing technology, applied in the direction of ball bearings, bearing components, shafts and bearings, to achieve the effects of preventing internal grease leakage, improving radial rated dynamic load and rated static load capacity, and convenient use

Inactive Publication Date: 2013-03-13
洛阳瑞成轴承有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the oil is not added in time, it may cause the grease to leak completely, resulting in dry friction between the raceway and the steel ball, causing early failure of the bearing

Method used

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  • Double-lip sealing type four-point contact ball turntable bearing
  • Double-lip sealing type four-point contact ball turntable bearing
  • Double-lip sealing type four-point contact ball turntable bearing

Examples

Experimental program
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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] like figure 2 As shown, a double-lip seal type four-point contact ball slewing bearing, the four-point contact ball slewing bearing includes an inner ring 4, an outer ring 1 and steel balls 2; an upper sealing ring 3 and a lower sealing ring 7 are provided ; The upper sealing ring 3 and the lower sealing ring 7 are ring structures of double-lip seals; the bodies 9 of the upper sealing ring 3 and the lower sealing ring 7 all have a sealing function protruding inwardly or outwardly. The two lips are lip I10 and lip II11; the bodies of the upper sealing ring 3 and the lower sealing ring 7 are located in the sealing groove of the outer ring 1 or inner ring 4, and the lip I10 rests on the inner ring 4 Or the end face of the outer ring 1 plays the role of axial sealing; the lip II11 rests on the outer diameter surface of the inner ...

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PUM

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Abstract

The invention belongs to the technical field of bearings, and provides a double-lip sealing type four-point contact ball turntable bearing. The double-lip sealing type four-point contact ball turntable bearing comprises an inner ring (4), an outer ring (1) and a steel ball (2), wherein an upper sealing ring (3) and a lower sealing ring (7) have double-lip sealed annular structures; two lips which extend towards the inner side or outer side and are used for realizing sealing functions are formed in bodies (9) of the upper sealing ring (3) and the lower sealing ring (7); the bodies (9) of the upper sealing ring (3) and the lower sealing ring (7) are positioned in sealing slots of the outer ring (1) or the inner ring (4); the lip I (10) is hasped on the end face of the inner ring (4) or the outer ring (1); and the lip II (11) is hasped on the outer diameter surface of the inner ring or the inner diameter surface of the outer ring. The double-lip sealing type four-point contact ball turntable bearing has high dustproof, waterproof and ageproof functions, can prevent internal lubrication fat from leaking and has the characteristics of good sealing effect, compact structure and convenience in mounting, maintenance and use.

Description

technical field [0001] The invention belongs to the technical field of bearings, in particular to a double-lip seal type four-point contact ball slewing bearing. Background technique [0002] The four-point contact ball slewing bearing is a kind of slewing bearing, and its structure is usually figure 1 As shown, it is composed of outer ring 1, inner ring 4, steel ball 2, spacer block 8, upper sealing ring 3, lower sealing ring 7, etc. Four-point contact ball slewing bearings can withstand large axial loads, radial loads and overturning moments at the same time, and are widely used in various mechanical equipment in construction machinery, port machinery, hoisting machinery, wind power, steel and other industries. [0003] like figure 1 As shown, the conventional four-point contact ball slewing bearing adopts a single-lip contact seal. The sealing ring is made of strip-shaped oil-resistant rubber. One side has a lip, which is inserted into the sealing groove of the inne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/16F16C33/78
Inventor 王黎峰贾蔚肖中罗杨海
Owner 洛阳瑞成轴承有限责任公司
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