Bearing roller for rolling mill

Abstract

The invention discloses a bearing roller for a rolling mill, the rolling surface of a roller is a revolution surface structure formed by revolving around a central line by a straight circular arc; a straight circular arc inclination state leads two sides of the roller to form a large end surface with large cross section and a small end surface with small cross section; the edge positions of the end surfaces at two sides of the roller are rounded off; a circular arc flat-bottomed groove is arranged at the central position of the large end surface, and the wall of the groove is an indented circular surface transitional form, and the small end surface forms a spherical surface groove from edge to center; the bearing roller in the invention is located axially, only pushing parts are arranged in the indented positions of the end surface at two sides, thereby not only reducing the abrasion area of the roller end surface and the traditional check ring, reducing the abrasion and improving the service life of the bearing, but also enhancing the thickness of the roller and the abrasive resistance owning to a circular arc rotational structure of the rolling surface.

Description

technical field [0001] The technology relates to a roller for a bearing. Background technique [0002] In the prior art, cylindrical rollers mostly rely on ribs to limit the rollers in the axial direction of the bearing. The problem is that due to the large contact area between the rib and the end face of the cylindrical roller, when the bearing under high-speed operation rotates, the large area will increase the wear and tear, which will affect the service life of the bearing. [0003] In addition, the contact between the rolling surface of the cylindrical roller and the raceways of the inner and outer rings gradually produces a shortage of fitting surfaces with wear and tear, resulting in vibration and instability of the bearing during rotation. Contents of the invention [0004] The present invention aims to provide durable, wear-resistant bearing rollers and thus increase the service life of the bearing. [0005] The invention provides a bearing roller for a rolling ...

AI Technical Summary

Problems solved by technology

The problem is that due to the large contact area between the rib and the end face of the cylindrical roller, when the bearing under high-speed operation rotates, the area is large due to increased wear, which in turn affects the service life of the bearing

[0003] In addition, the contact between the rolling surface of the cylindrical roller and the raceways of the inner and outer rings gradually produces a shortage of fitting surfaces with wear and tear, resulting in vibration and instability of the bearing during rotation

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