Novel combined bearing

Abstract

The invention discloses a novel combined bearing. The novel combined bearing comprises an outer ring, an inner ring, a row of balls and a row of cylindrical rollers, wherein the inner circumferentialwall of the outer ring and the outer circumferential wall of the inner ring are each annularly provided with a first roller path allowing the corresponding row of balls to roll, the inner circumferential wall of the outer ring and the outer circumferential wall of the inner ring are each annularly provided with a second roller path allowing the corresponding row of cylindrical rollers to roll, thefirst roller paths are located on one sides of the second roller paths, abutting grooves used for preventing the cylindrical rollers from bearing excessive overturning moment are formed in the innerwalls of the two sides of the two second roller paths correspondingly, limiting rings used for preventing the cylindrical rollers from bearing excessive overturning moment protrude out of the inner circumferential walls of the two second roller paths correspondingly, the outer circumferential wall of each cylindrical roller is annularly provided with a limiting groove allowing the corresponding limiting ring to be inserted therein, and the outer ring is provided with an oil supplementing piece used for supplementing oil into the bearing. The problems that in the prior art, a bearing is prone to damage under radial loads and axial loads, and oil supply in the bearing is insufficient are solved.

Description

technical field [0001] The invention relates to the technical field, in particular to a novel composite bearing. Background technique [0002] Different bearing types can bear different types of load types. In some high-speed occasions that need to bear radial load and axial load at the same time, it is often necessary to arrange four-point contact ball bearings and cylindrical bearings side by side, which can solve the problem of bearing combined loads. problem, but at the same time there will be three main defects, one is that the four-point contact ball bearing will receive radial load and axial load at the same time, and it is easy to fail due to heat; the other is that the end faces of two bearings arranged side by side are easy to slip, causing bearing failure ; The third is that the oil passages of two rows of bearings in parallel are difficult to connect, and one of the bearings is prone to dry running with poor oil. Contents of the invention [0003] Aiming at th...

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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a new combined bearing, in order to solve the problems in the prior art that the bearing is easily damaged by radial load and axial load and the internal oil supply of the bearing is insufficient

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