Rolling mill double-row tapered roller bearing

Abstract

The invention discloses a rolling mill double-row tapered roller bearing, comprising an outer ring (1), an inner ring (2), a tapered roller (3) and a retaining bracket (4); the outer ring (1) is a splitting structure formed by two outer ring dividing cycles; two sides of the outer diameter of the outer ring (1) are rounded off, the outer diameter side at the connecting position of the two outer ring dividing cycles is rounded off; the inner hole of the outer ring (1) is in an inverted V-shaped hole, and two sides of the inner hole of the outer ring (1) are rounded off; the middle part of the inner hole of the outer ring (1) is provided with a ring-shaped groove; four oil injection holes pointing to the circle center of the outer ring are arranged in the middle part of the outer ring (1); the rolling mill double-row tapered roller bearing is mainly applied to rolling mill industry; in the invention, the friction is greatly reduced, lubricating condition is improved, lubricating quality is improved, friction heating and energy consumption loss are reduced, and the life of the bearing is greatly improved.

Description

technical field [0001] The invention relates to a tapered roller bearing, more specifically to a tapered roller bearing used in a rolling mill, and belongs to the technical field of double-row tapered roller bearings. Background technique [0002] Double-row tapered roller bearing structure is composed of inner ring, outer ring, tapered rollers and cage. Double-row tapered roller bearings are used in rolling mills of various rolling mills. The bearings work under impact, high temperature, high speed, heavy load, lubrication Poor, high-pressure water wash and other harsh working conditions. The end of the bearing box is designed with a seal, mainly to prevent foreign matter from entering the bearing, such as impurities, cooling water, iron oxide scale, etc. When the new seal is just used, the sealing effect is good, but after a period of use, the sealing effect becomes poor. If the seal is not replaced in time at this time, the sealing effect is very poor. In addition, frequ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above technical problems, the present invention provides a rolling mill double-row tapered roller bearing, which solves the problems of external foreign matter entering the bearing and lubricating grease leaking out.

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