CN2283753Y

CN2283753Y - Biserial self-aligning roller bearing

Info

Publication number: CN2283753Y
Application number: CN 97214896
Authority: CN
Inventors: 李忠君; 周世国
Original assignee: Wafangdian City No1 Bearing Plant
Current assignee: Wafangdian City No1 Bearing Plant
Priority date: 1997-05-08
Filing date: 1997-05-08
Publication date: 1998-06-10
Anticipated expiration: 2007-05-08

Abstract

The utility model relates to a double-row self-aligning roller bearing, which belongs to an established line bearing. The bearing comprises an outer ring, an inner ring and two rows of rollers symmetrically arranged between the outer ring and the inner ring. The width of the is 150 mm. Because the width of the bearing width is increased, the rating dynamic load and the load capacity of the bearing is improved. The utility model has the advantages of small size, light weight, compact structure, etc.

Description

Double-row self-aligning roller bearing

The utility model belongs to a kind of established line bearing.

The standard rolling bearings such as 3656 that on main frames such as mine, metallurgical machinery, Coal Mechanical, light industry and machinery, pebble mill, use at present, cost height, overall volume are big, and weight is big.

The purpose of this utility model is at the problems referred to above, provides that a kind of overall volume is little, cost is low, and load bearing capacity is big, is applicable to the double-row self-aligning roller bearing that heavy duty and vibrational loading are worked down.

Double-row self-aligning roller bearing comprises the symmetrically arranged spherical roller of two row, outer ring, inner ring and retainer.Bearing width is greater than 130mm.Outer ring raceway is a sphere shape, and inner ring has two with respect to bearing heart line inclination raceway at angle, and little rib is arranged, no centre rib.Retainer adopts solid cage, is made by high strength nodular cast iron or brass.

Double-row self-aligning roller bearing has following advantage:

1, have the self-aligning function, when inner ring axis has bigger inclination with respect to outer coil axis, still can proper functioning, aligning performance good (allowing the aligning angle to be not more than 1.5 °) can compensating coaxial degree error.

2, since the bearing width of double-row self-aligning roller bearing greater than 130mm, the bearing face height increases, thereby makes the corresponding increase of roller length, dynamic load rating strengthens, bearing capacity is strengthened.

3, volume is little, and is in light weight, compact structure.

4, not only the radial load bearing capacity is big for double-row self-aligning roller bearing, and when bearing radial load, also bear either party to axial load (axial load amount maximum only allow to reach unemployed radial load 25%).In addition, this bearing can be limited in the axial displacement of axle or shell in the limit of axial internal clearance of bearing, and alignment error is had very big compensation ability.Alternative 3656 standard rolling bearings of the utility model.

Fig. 1 is a kind of example structure schematic representation of double-row self-aligning roller bearing, and Fig. 2 is the outer ring structure schematic representation, and Fig. 3 is the inner ring structural representation, and Fig. 4 is the retainer structural representation, and Fig. 5 is the roller structure schematic representation.The utility model is described in further detail below in conjunction with accompanying drawing.

Double-row self-aligning roller bearing comprises outer ring 1, inner ring 2, spherical roller 3, retainer 4.The wide of outer ring 1 and inner ring 2 is that 150mm, external diameter are that 460mm, internal diameter are 280mm.Outer ring 1 raceway is a sphere shape, and inner ring 2 has two to be inclined to the raceway of several angle with respect to bearing axis, and little rib 5 is arranged.Two row spherical rollers 3 are set between outer ring 1 and inner ring 2 symmetrically, and each spherical roller 3 is all packed in the pocket hole 6 on the retainer 4, is separated by retainer 4 between the spherical roller 3.

Claims

1, double-row self-aligning roller bearing comprises that outer ring (1), inner ring (2), retainer (4) and two row are symmetricly set on the spherical roller (3) between outer ring (1) and the inner ring (2), and the width that it is characterized in that described outer ring (1) and inner ring (2) is greater than 130mm.

2, double-row self-aligning roller bearing according to claim 1 is characterized in that the optimum width of described outer ring (1) and inner ring (2) is 150mm.