CN203548565U

CN203548565U - Cylindrical roller bearing with double-claw retainer with locking port

Info

Publication number: CN203548565U
Application number: CN201320538832.XU
Authority: CN
Inventors: 王晓明; 彭松; 邵元昭
Original assignee: LUOYANG SENNUO PRECISION BEARING Co Ltd
Priority date: 2013-09-02
Filing date: 2013-09-02
Publication date: 2014-04-16
Anticipated expiration: 2023-09-02

Abstract

The utility model relates to the technical field of bearing retainers and discloses a cylindrical roller bearing with a double-claw retainer with a locking port and an assembling method thereof. The cylindrical roller bearing comprises an outer ring, an inner ring, rolling bodies and a retaining rack, wherein a plurality of retaining rack pocket holes 2 are uniformly distributed at the inside diameter of a retaining rack body 3 of the retaining rack, and the retaining rack locking port 1 is formed in the inside diameter of the rack body 3. The cylindrical roller bearing has the advantages that the assembling problem of cylindrical roller bearings with two-end seals is solved; the condition that the rolling bodies can be smoothly loaded into the pocket holes can be guaranteed, and the condition that the rolling bodies do not fall from the pocket holes under the action of self-gravity can also be guaranteed; the disadvantage that a gap is formed in a retaining edge through milling is avoided, a sealing structure for the bearing is convenient to realize, and the machining and assembling processes are convenient.

Description

A kind of double claw type retainer roller bearing with fore shaft

Technical field

The utility model relates to bearing cage technical field, relates in particular to a kind of double claw type retainer roller bearing with fore shaft.

Background technique

At present, existing double claw type cylindrical bearing retainer bearing, at dress during rolling element, is all from axially the packing in pocket hole of retainer, like this for the roller bearing with rib, must be on rib the suitable breach of milling one, could assemble; In when assembling, by rolling element, from indentation, there from axially packing into retainer pocket hole, for the roller bearing with sealing not, this assembly method is feasible.But for the roller bearing of two ends band sealing, if during assembling or on end face milling one breach, will cause existing sealing not have effect.For the roller bearing that bears axial force, indentation, there is the weakness of bearing in addition, and the rib of bearing is easy to damage from here, and roller also easily scurries out from here, as sees as shown in Fig. 1,2; In view of above reason, be badly in need of a kind of double claw type retainer roller bearing with fore shaft.

Summary of the invention

In order to overcome the deficiency in background technique, the utility model provides a kind of double claw type retainer roller bearing and assembly method with fore shaft.

In order to realize foregoing invention object, the utility model adopts technological scheme as follows:

A kind of double claw type retainer roller bearing with fore shaft, comprise: outer ring, inner ring, rolling element, retainer, the internal diameter of described guarantor's support body 3 of described retainer is evenly equipped with some retainer pockets hole 2, and on the internal diameter of support body 3, is provided with a retainer fore shaft 1.

Owing to adopting technological scheme as above, the utlity model has following superiority:

With a double claw type retainer roller bearing for fore shaft, when assembling can from retainer radially B rolling element is put in pocket hole, must be on the rib of bearing ring while having solved former assembling gap, rolling element is put into the situation of retainer from breach.While assembling via fore shaft from support body internal diameter, the physical efficiency that can guarantee to roll packs pocket hole smoothly into, can guarantee that again rolling element does not drop out from pocket hole under self gravitation effect.

[accompanying drawing explanation]

Fig. 1 is the structural representation of the roller bearing of existing two ends band sealing;

Fig. 2 is the retainer structure intention of the roller bearing of Fig. 1 two ends band sealing;

Fig. 3 be double claw type retainer roller bearing with fore shaft structural representation;

Fig. 4 is the structural representation of the double claw type roller bearing retainer with fore shaft;

Fig. 5 be Fig. 2 A-A to structural representation;

In figure: retainer fore shaft 1, pocket hole 2, support body 3;

[embodiment]

As shown in Figures 1 to 5, a kind of double claw type retainer roller bearing with fore shaft, comprise: outer ring 6, inner ring 5, rolling element 4, retainer, the internal diameter of described guarantor's support body 3 of described retainer is evenly equipped with some retainer pockets hole 2, and on the internal diameter of support body 3, is provided with a retainer fore shaft 1.

An assembly method for double claw type retainer roller bearing with fore shaft, its step is as follows:

1, first process retainer, the some retainer pockets of uniform processing hole 2 on the support body 3 of retainer, and on the internal diameter of support body 3, mill out a retainer fore shaft 1;

2, the hold depth of retainer fore shaft 1 is arranged between 0.1 ~ 0.3mm according to the size of outer ring, inner ring and rolling element;

3, the assembling of the roller bearing of retainer and the sealing of two ends band, the retainer fore shaft 1 being milled out by support body 3 internal diameters of retainer assembles with the roller bearing of two ends band sealing, during assembling, rolling element to be packed in the pocket hole of retainer from support body 3 internal diameter direction B, the physical efficiency that can guarantee to roll packs pocket hole smoothly into, can guarantee that again rolling element does not drop out from pocket hole under self gravitation effect; Avoided the weak link of bearing, be convenient to realize sealing configuration for the roller bearing of band sealing, and processing and assembling has been convenient.

The utility model is mainly the bearing cage by improving existing structure, on original structure retainer internal diameter, mill out a fore shaft, hold depth according to bearing size and rolling element size generally between 0.1 ~ 0.3mm, it is suitable that the size of hold depth must be selected, like this when assembling via fore shaft from internal diameter, the physical efficiency that can guarantee to roll packs pocket hole smoothly into, can guarantee that again rolling element does not drop out from pocket hole under self gravitation effect.Such structure, does not just need gap on the rib of bearing ring to assemble again, thereby has avoided the weak link of bearing, for the roller bearing of band sealing, very good for the design of sealing configuration in addition.Fig. 3 is the bearing adopting with fore shaft retainer, and Fig. 4 is the retainer of bearing, is to pack rolling element 4 into from internal diameter direction B during bearing assemble, therefore on bearing face, needn't be with breach, can in bearing both sides, add sealing configuration very easily in addition.Retainer assembling with locking notch structure is simple, has solved the assembly problem with sealing configuration bearing, and on the bearing with sealing configuration, also can not adopt.

Claims

1. the double claw type retainer roller bearing with fore shaft, comprise: outer ring (6), inner ring (5), rolling element (4), retainer, it is characterized in that: the internal diameter of described guarantor's support body (3) of described retainer is evenly equipped with some retainer pockets holes (2), and on the internal diameter of support body (3), be provided with a retainer fore shaft (1).