RU2620273C1 - Ball spherical double-row rolling bearing - Google Patents

Abstract

FIELD: machine engineering.

SUBSTANCE: ball spherical double-row rolling bearing contains an outer ring (1) with two toroidal surfaces of the raceways, an inner ring (2) with a spherical surface of the raceway, a rolling element in the form of balls (3) having a profile interfaced with the toroidal surface of the raceways of the outer rings (1). Distance between the raceways of the outer ring (1) is selected in such a way that balls (3) of one raceway be in contact with balls (3) of adjacent raceways only creating clearance between balls, located on the same raceway. At least one of the ends of the inner ring (2) is equipped with a retaining ring (4), which limits the mutual skewing of the rings (1, 2).

EFFECT: elimination of the probability of the self-assembly of the bearing during its transportation or installation.

2 dwg

Description

The invention relates to the field of engineering, in particular to ball bearings, and can be used in low-speed highly loaded mechanisms.

Known ball spherical double-row rolling bearing, containing the outer and inner rings with raceways, rolling elements in the form of balls, a separator for separating rolling elements, raceways of the outer ring, which is split along the axis of symmetry, are made with toroidal surfaces, the raceway of the inner ring is made spherical and the balls have a profile associated with the mountainous surfaces of the raceways of the outer ring (Pat. RU No. 2410581 C1, IPC F16C 19/08, F16C 23/08, F16C 33/58, F16C 33/60).

The disadvantage of the described bearing is the substantial axial dimensions, since the outer ring of the bearing is split, and the raceways are located at a certain distance from each other, so that the rolling bodies of one raceway do not have contact with the rolling bodies of the adjacent raceway.

Closest to the proposed invention by technical nature and the achieved result (prototype) is a spherical ball double-row rolling bearing containing the outer and inner rings with raceways, rolling elements in the form of balls. The raceways of the outer ring are made with toroidal surfaces. The raceway of the inner ring is spherical. The balls have a profile mated to the toroidal surfaces of the raceways of the outer ring. The distance between the raceways of the outer ring is selected so that the balls of one raceway are in contact only with the balls of the adjacent raceway with the formation of a gap between the balls located on the same raceway (Pat. GB No. 191312073, publ. 23.10.1913).

The disadvantage of the described bearing is that in the absence of cages and a significant misalignment of the bearing rings exceeding the operational limits, for example, during transportation or installation of the bearing, the balls can leave its working cavity, and subsequent reassembly will be significantly difficult without special additional equipment.

The present invention solves the problem of eliminating the possibility of self-dismantling of the bearing during its transportation or installation in any device.

The problem is achieved in that in a spherical ball double-row rolling bearing containing an outer ring with two toroidal surfaces of the raceways, an inner ring with a spherical surface of the raceway, a rolling body in the form of balls having a profile conjugated with a toroidal surface of the raceways of the outer ring, the distance between the raceways of the outer ring is chosen so that the balls of one raceway are in contact only with the balls of the adjacent raceway with images According to the invention, at least one of the ends of the inner ring has a retaining ring that limits the mutual skew of the outer and inner rings according to the invention, by the gap between the balls located on the same raceway.

Installing at least one retaining ring limits possible misalignment of the bearing rings and eliminates the possibility of self-disassembling.

The present invention is illustrated by drawings, which depict a ball full complement rolling bearing, axial section.

Ball spherical double row rolling bearing comprises an outer ring 1 with two toroidal raceways and an inner ring 2 with a spherical surface of the raceway. The rolling bodies are made in the form of balls 3. To prevent self-disassembling during transportation and installation, a snap ring 4 is installed at the end of the inner ring of the bearing.

The rolling bearing operates as follows.

The proposed bearing, mounted in a node, device, machine, provides the perception of loads and transmission of rotation. When the outer ring 1 and the inner ring 2 are rotated, the bearings of the rolling body also rotate, providing the necessary mutual position of the outer ring 1 and the inner ring 2. With an increase in the mutual skew of the rings 1 and 2, the balls 3 abut against the snap ring 4, preventing self-dismantling of the bearing.

Claims (1)

Spherical double-row ball bearing containing an outer ring with two toroidal surfaces of the raceways, an inner ring with a spherical surface of the raceway, rolling elements in the form of balls having a profile mating with toroidal surfaces of the raceways of the outer ring, the distance between the raceways of the outer ring is chosen so so that the balls of one raceway are in contact only with the balls of the adjacent raceway with the formation of a gap between the balls located on one raceway, characterized in that at least one of the ends of the inner ring has a retaining ring that limits the mutual skew of the outer and inner rings.

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