Back-to-back assembly type biserial angular contact ball bearing and assembling method thereof

Abstract

The invention provides a back-to-back assembly type biserial angular contact ball bearing and an assembling method thereof. The back-to-back assembly type biserial angular contact ball bearing comprises an outer ring, wherein a first inner channel and a second inner channel are formed in the inner circumferential surface of the outer ring, a first inner ring and a second inner ring are correspondingly arranged in the outer ring in a sleeved mode, and the two inner rings are arranged in sequence in the front-back direction and are in contact fit in an abutting mode; an outer channel is formed in the outer circumferential surface of each inner ring, steel balls are correspondingly arranged in the outer channels of the two inner rings and the two inner channels of the outer ring, and the hole wall at each of the two ends of the outer ring is of a conical structure which becomes smaller from outside to inside gradually to enable the two axial end faces of the outer ring to be narrow-side end faces arranged backing onto each other. Due to the fact that an inner partition ring and an outer partition ring are omitted, grinding of the inner partition ring and the outer partition ring is avoided, the assembly type biserial angular contact ball bearing pre-tightening force fitting technology is simplified, axial pre-tightening force adjusting time is shortened, and pre-tightening force adjusting efficiency is improved. Due to the adoption of the integral outer ring, the whole back-to-back assembly type biserial angular contact ball bearing can be installed easily and efficiently, complicated adjusting steps are omitted, and installation difficulty is reduced.

Description

technical field [0001] The invention relates to a back-to-back assembled double-row angular contact ball bearing and an assembled method thereof. Background technique [0002] Angular contact ball bearings are generally used in combination in practical applications, that is, two sets, three sets or even more sets of angular contact ball bearings are used together in a certain configuration. The basic combination method is back-to-back (ie The wide side end faces of the two outer rings are opposite to each other), face-to-face (that is, the narrow side end faces of the two outer rings are opposite to each other), and in series (that is, the narrow side end faces of one outer ring are set opposite to the wide side end faces of the other outer ring). According to the needs of actual working conditions, select bearings with different matching methods. [0003] The general back-to-back angular contact ball bearings are mainly formed by combining two sets of angular contact ball ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a back-to-back assembled double-row angular contact ball bearing to solve the technical problem in the prior art that the preloading operation of the back-to-back assembled angular contact ball bearing is complicated by using inner and outer spacers for preloading; At the same time, the present invention also provides a method for assembling the above-mentioned back-to-back assembled double row angular contact ball bearings

Images