Combined bearing

A technology of combining bearings and components, applied in the direction of bearings, bearing components, shafts and bearings, etc., can solve problems such as inability to meet drilling equipment, poor bearing lubrication performance, and large weight of closed cages.

Inactive Publication Date: 2010-07-07
瓦房店鹏东轴承制造有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] Under the existing technology, the two-way thrust angular contact ball bearing mainly has the problems of low radial thrust dynamic and static load, the heavy w

Method used

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Embodiment Construction

[0007] Such as figure 1 The combined bearing shown includes two sets of rolling element assemblies stacked one above the other. Among them, the first set of rolling element components includes the upper upper shaft ring 1, the lower middle shaft ring 3, and the cylindrical roller 2 between the upper shaft ring 1 and the middle shaft ring 3; the cylindrical roller 2 is formed by the first cage 4 limited position. The second set of rolling element components includes the central shaft ring 3, the lowermost race 6, and the steel ball roller 5 between the central shaft ring 3 and the race 6; the position of the steel ball roller 5 is defined by the second cage 7 . In addition, in a preferred manner, the diameter of the seat ring 6 is smaller than the diameters of the upper shaft ring 1 and the middle shaft ring 3 . The middle shaft ring 3 and the seat ring 6 are correspondingly provided with raceways for the steel ball rollers 5 . And in a preferred manner, the first cage 4 an...

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Abstract

The present invention discloses a combined bearing. The bearing consists of an upper shaft washer (1), a roller (2), a middle shaft washer (3), steel balls (5), a housing washer (6) and retainers. The cylindrical roller (2) is arranged between the upper shaft washer (1) and the middle shaft washer (3), the cylindrical roller (2) is contained in the first retainer (4), the steel ball roller is arranged between the middle shaft washer (3) and the housing washer (6), the steel ball roller is contained in the second retainer (7), and both of the retainers are closed type solid brass retainers. When the combined bearing is in a work state, the combined bearing can perform certain aligning function. The strength and the abrasive resistance of the retainers are improved, and the axial bearing capability is improved twice.

Description

technical field [0001] The invention relates to a composite bearing provided with two sets of rolling elements. Background technique [0002] Under the existing technology, the two-way thrust angular contact ball bearing mainly has the problems of low radial thrust dynamic and static load, the heavy weight of the closed cage affects the rotation flexibility of the steel ball, and the poor lubrication performance of the bearing. Meet the needs of drilling equipment. Contents of the invention [0003] The purpose of the present invention is to provide a bidirectional thrust combined bearing which has higher bearing capacity, better lubricating performance and certain axial action compared with the bidirectional thrust angular contact ball bearing. [0004] The invention constructs a combined bearing, which includes two sets of rolling element assemblies stacked one above the other. Wherein, the first set of rolling element assembly located at the upper part includes the up...

Claims

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Application Information

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IPC IPC(8): F16C19/54F16C33/58F16C33/56F16C33/44
Inventor 李连鹏陶淑媛李连宙王震江刘勇邓爱秋陈维秀
Owner 瓦房店鹏东轴承制造有限公司
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