CN2469233Y

CN2469233Y - Novel rolling bearing

Info

Publication number: CN2469233Y
Application number: CN 00264340
Authority: CN
Inventors: 林振平
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-02
Filing date: 2000-12-02
Publication date: 2002-01-02
Anticipated expiration: 2010-12-02

Abstract

The utility model relates to a novel rolling bearing, which belongs to transmission part technology field. One end (1) of a bearing inner ring is longer, the outer surface of the longer part is provided with a mutual parallel plane (2) for wrench handling bearing, the inner surface of the inner ring is provided with a screw thread (3), and at the same longer end of the inner ring, the outer surface of the outer ring is provided with a ring (4) for limiting the depth of bearing being loaded into work piece. The novel rolling bearing is simple in structure, easy in process, and convenient in handling, which is suitable for each transmission mechanism whose axis has thread.

Description

The new-type rolling bearing

The utility model is a kind of new-type rolling bearing, belongs to the driving component technical field.

Retaining and ball on the present bicycle quick wear and tear easily, and the personnel that repair that have hold wrist, ball and the retaining that replaces bicycle rear with 6200 profile shafts, and the two ends of bearing are with two nut checks.But the external diameter of bicycle rear axle is slightly less than the internal diameter that 6200 profile shafts hold, and bearing is loosening easily, accelerates the damage of bearing.

The purpose of this utility model provides a kind of rolling bearing that can be fixedly mounted on the threaded axle, and dress is driven convenient, and simple in structure, durable, cost is low.

The utility model is achieved in that an end of the inner ring of rolling bearing grows (1) in the axial direction, and the outer surface of long part has plane parallel to each other (2), drives bearing usefulness for the spanner dress, and the internal surface of inner ring has screw thread (3); The outer ring inner ring the outer surface of long same end the annulus (4) of protrusion is arranged, restrictive axes takes up the degree of depth into workpiece.Other parts are identical with common rolling bearing.Be installed in when spool last the end nut check that inner ring is long.

The utility model is compared with prior art: do not change bearing basic structure, only need the lengthening inner ring, and with the internal surface tap out of inner ring, outer surface mills out plane parallel to each other, annulus of outer surface processing of outer ring, other parts are identical with plain bearing, easy processing, cost is low, and dress is driven convenient, be installed on the threaded axle and can not become flexible, durable.

Fig. 1 is the axial section of new-type rolling bearing, has omitted retainer and dust cover (or seal ring) among the figure.

Fig. 2 and Fig. 3 are the front views of the inner ring of new-type rolling bearing.

Fig. 4 is the A-A sectional drawing of Fig. 2 and Fig. 3.

Fig. 5 is the some of axial section of the outer ring of new-type rolling bearing.

Accompanying drawing is for referencial use with deep groove ball bearing.

Is that example is further described embodiment of the present utility model below in conjunction with accompanying drawing with the bearing of ordinary bicycle front and rear wheel and speed-varying vehicle special use.

The front-wheel special bearing: the screw thread specification M of the internal surface of bearing inner race is M8 * 1, and the width H on plane parallel to each other is 12mm, and the length L of inner ring elongated portion is 5mm (Fig. 4); The bearing outer ring thickening, external diameter is got 25mm, and other data are held with reference to 628 profile shafts.

The trailing wheel special bearing: the screw thread specification M of the internal surface of bearing inner race is M10 * 1, and the width H on plane parallel to each other is 15mm, and the length L of inner ring elongated portion is 5mm (Fig. 4), and other data are held with reference to 6200 profile shafts.

The speed-varying vehicle special bearing: the screw thread M of the internal surface of bearing inner race is made in Great Britain 3/8 " 26BSF, the width H on plane parallel to each other is 15mm, the length L of inner ring elongated portion is 5mm (Fig. 4); Bearing outer ring inner ring the outer surface of long same end the annulus (Fig. 1) of protrusion is arranged, restrictive axes takes up the degree of depth into workpiece, the width E of annulus, height F get 1-3mm (Fig. 5).Other data are held with reference to 6200 profile shafts.

Other is as bicycle middle shaft, tricycle front-wheel special bearing, and the partially self car needs the bearing of special requirement, and the screw thread specification of inner ring and the external diameter of outer ring be value as required.

The long that part of outer surface of inner ring of the present utility model has for the wrench dress drives the plane parallel to each other (2) that bearing is used, two kinds of forms can be processed in this plane: a kind of is to drive two planes (Fig. 3) that bearing is used for open-end wrench dress, and another kind is that to drive end face that bearing uses for the hexagon wrench dress hexagonal six planes (Fig. 2) such as be.

Above-described new-type rolling bearing is shaped as ring, its structure is formed (Fig. 1) by an inner ring, outer ring, steel ball and a retainer of one group, the raceway that the outer surface of inner ring and the internal surface of outer ring have steel ball to roll, steel ball rolls between inner ring and outer ring raceway, retainer is equally spaced with one group steel ball in the bearing, keep steel ball, the guiding steel ball rolls on correct raceway.As required, steel ball and retainer outside installs dust cover (or seal ring) additional.

The utility model is widely used in screw thread is arranged on the installation shaft (or axle can be processed into screw thread), the inner ring lengthening is not subjected to install in the various driving mechanisms of restriction (or not influencing driving component work) except being used for bicycle, tricycle, wooden handcart, special cycle for disabled people etc.

Claims

1, a kind of new-type rolling bearing, it is characterized in that: an end of bearing inner race is grown (1) in the axial direction, long that part of outer surface has for the spanner dress drives the plane parallel to each other (2) that bearing is used, the internal surface of inner ring has screw thread (3), the outer ring of bearing inner ring the outer surface of long same end have the restrictive axes of protrusion to take up annulus (4) into the workpiece degree of depth.

2, new-type rolling bearing according to claim 1, it is characterized in that: be shaped as ring, structure is made up of an inner ring, outer ring, steel ball and a retainer of one group, the raceway that the outer surface of inner ring and the internal surface of outer ring have steel ball to roll, steel ball rolls between inner ring and outer ring raceway, and retainer is equally spaced with one group steel ball in the bearing.