CN201599315U

CN201599315U - Four-row tapered roller bearing without inner space ring and outer space ring

Info

Publication number: CN201599315U
Application number: CN2010201022382U
Authority: CN
Inventors: 王立平; 韩长涛; 马岩; 王衍涛; 栾树林
Original assignee: Wafangdian Metallurgy and Mining Bearing Manufacturing Co Ltd
Current assignee: Dalian Grandway Bearing Co., Ltd.
Priority date: 2010-01-27
Filing date: 2010-01-27
Publication date: 2010-10-06
Anticipated expiration: 2020-01-27

Abstract

The utility model relates to a four-row tapered roller bearing without an inner space ring and an outer space ring, comprising four single rollway outer rings, two double rollway inner rings, four rows of rollers and four retainers, wherein the four rows of rollers are respectively arranged in the four retainers, the two rows of rollers and the retainers connected thereof are arranged on the inner rings, and the other two rows of rollers are arranged in the double rollway of the inner rings to form inner ring members which comprise the rollers and the retainers; and the number of the inner ring members is two; the two inner ring members are connected axially; and the four single rollway outer rings are sheathed on the four rows of rollers in sequence. The four-row tapered roller bearing eliminates the traditional inner space ring and the outer space ring, the axial clearance thereof can not be influenced by the thickness of the walls of the space rings and the deformation in the machining process, and the axial clearance is mainly guaranteed by adjusting the size of the width of the inner ring and the outer ring; and the bearing can be controlled within 0.01mm by using the mutual difference of the clearance of four rows of rolling bodies, thus guaranteeing the uniform stressing of the four rows of rolling bodies and prolonging the service life of the bearing.

Description

Not with the four-row tapered roller bearing of internal space ring and external space ring

Technical field

The utility model relates to bearing, particularly relates to being applicable to not being with the internal space ring and external space ring four-row tapered roller bearing under heavy duty, highi degree of accuracy, the high operating mode of reliability requirement.

Background technique

Traditional four-row tapered roller bearing, its axial internal clearance adjustment needs inside and outside spacer ring (seeing the

label

5,6 of Fig. 2), because spacer ring wall thickness, distortion is big in course of working, therefore axial internal clearance is difficult to hold, caused play phase mutual deviation big (surpassing 0.03mm) and inhomogeneous, final result is that wherein a row rolling element decreases ring earlier, thereby causes a whole set of bearing not reach expected service life.

The model utility content

The technical problems to be solved in the utility model, it is stressed evenly to provide a kind of guarantee bearing four row rolling elements, prolong bearing working life not with the four-row tapered roller bearing of internal space ring and external space ring.

The technological scheme that adopts is:

Not with the four-row tapered roller bearing of internal space ring and external space ring, comprise have four single raceway outer rings, two two raceway inner rings, four row rollers and four retainers.Described four row rollers are contained in respectively in four retainers, wherein two row rollers and the retainer that connected are contained on the inner ring, and two row rollers are contained in the two raceways of inner ring, constitute an inner ring assembly that comprises roller, retainer, form two inner ring assemblies altogether, described two inner ring assemblies are axially connected, and described four single raceway outer rings are socketed on the four row rollers successively, do not constitute to be listed as the circle taper roller bearings with four of internal space ring and external space ring.

The utility model has been cancelled traditional inside and outside spacer ring, its axial internal clearance can not be subjected to the thickness of spacer ring wall and the influence of being out of shape in course of working, axial internal clearance mainly guarantees by adjusting inside and outside circle width dimensions, this bearing can use the play phase mutual deviation of four row rolling elements to be controlled in the 0.01mm, ensure that bearing four row rolling elements are stressed evenly, prolonged the working life of bearing.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is former bearing structure contrast schematic representation.

Embodiment

Not with the four-row tapered roller bearing of internal space ring and external space ring, comprise have four single raceway outer rings 1, two two raceway inner rings 2, four row rollers 4, four retainers 3.Described four row rollers 4 are contained in respectively in four retainers 3, wherein two row rollers 4 and the retainer 3 that connected are contained on the inner ring 2, and two row rollers 4 are contained in 2 pairs of raceways of inner ring, constitute an inner ring assembly that comprises roller 4, retainer 3, form two inner ring assemblies altogether, described two inner ring assemblies are axially connected, and described four single raceway outer rings 1 are socketed on the four row rollers 4 successively.The generation of axial internal clearance mainly is reserved with certain machining allowance by width tolerance, the inside and outside circle of the inside and outside circle of control, when assembling as adjustment, constitute not four-row tapered roller bearing with internal space ring and external space ring.

Claims

1. not with the four-row tapered roller bearing of internal space ring and external space ring, comprise and have four single raceway outer rings (1), two two raceway inner rings (2), four row rollers (4), four retainers (3), it is characterized in that described four row rollers (4) are contained in respectively in four retainers (3), wherein two row rollers (4) and the retainer (3) that connected are contained on the inner ring (2), two row rollers (4) are contained in the two raceways of inner ring (2), constitute and comprise roller (4), an inner ring assembly of retainer (3), form two inner ring assemblies altogether, described two inner ring assemblies are axially connected, and described four single raceway outer rings (1) are socketed on the four row rollers (4) successively.