CN2198444Y - Rotary bearing - Google Patents

Abstract

The utility model discloses a rotary bearing. Nylon is moulded into an annular retainer with an inclined plane. A plurality of ball bags and claws are uniformly distributed on the retainer. Steel balls are clamped in the ball bags, and the retainer is arranged on a channel in a sitting ring. A shaft ring is arranged on the retainer. The rotary bearing can prevent the phenomenon of ball dropping in the course of assembly and production and can improve production efficiency and bearing quality. The utility model can be put into quantity industrial production and has the advantages of simple structure and easy execution.

Description

Rotary bearing

The utility model relates to a kind of bearing.

The present steering bearing of producing, its steel ball intersperse among among the raceway groove of seat ring, owing to inevitably collide with in the assembly process and vibrate, very easily fall the ball phenomenon.Falling space behind the ball greatly influences the rotational stabilization and the steering safety of main frame.Behind bearing race raceway groove and worn steel ball, easily form inhomogeneous hole, cause bearing radially with circumferential movement on irreqularity.When assembling, in bearing race, be coated with earlier full grease at present, cling steel ball, prevent to drop by the viscosity of grease.So, at present the efficiency of assembling of steering bearing is low, and inconvenience realizes automation.

The purpose of this utility model provides a kind of steering bearing that contains retainer, and what prevent to take place in the Assembling Production the ball phenomenon, improves Assembling Production efficient.

The purpose of this utility model is to realize like this, become to have the annular retainer on inclined-plane with nylon injection-molding, evenly distribution several balls pocket and claw on the retainer, steel ball is stuck in the ball pocket of retainer, retainer places on the interior raceway groove of seat ring, and blowout patche places on the retainer.

The utility model has the advantages that the structure that need not change former bearing, can prevent to fall the ball phenomenon in the Assembling Production, improved Assembling Production efficient and bearing quality, but mass industrialized production.

Fig. 1 is the steering bearing sectional view;

Fig. 2 is a steering bearing retainer sectional view;

Fig. 3 is that steering bearing retainer K is to unfolded drawing.

(1) seat ring, (2) retainer, (3) steel ball, (4) blowout patche, (5) claw, (6) ball pocket among the figure.

Be described further below in conjunction with drawings and Examples.

Retainer in the steering bearing described in the utility model (2) is injection molded into annular with nonmetallic material such as nylon 66 or Reinforced Nylon, forms several equally distributed ball pockets (6) and claw (5) on annular slope.The opening shape of ball pocket (6) for not sealing, ball pocket (6) diameter is identical with steel ball (3) diameter.Utilize the steel ball gauge to guarantee matching gap, rely on the resiliently deformable of claw (5) to keep steel ball (3) in ball pocket (6), form retainer (2) assembly.Get final product with existing steering bearing seat ring (1), blowout patche (4) trap again.

Claims (1)

1. A kind of steering bearing, be made up of seat ring, retainer, steel ball, blowout patche, it is characterized in that becoming to have on the annular retainer on inclined-plane evenly distribution several balls pocket and claw with nylon injection-molding, steel ball is stuck in the ball pocket, retainer places on the interior raceway groove of seat ring, and blowout patche places on the retainer.

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