CS226599B1 - Semi-finished massive cage roller bearings made of tube - Google Patents

Abstract

The semi-finished product of solid bearing cages from a tube is intended for the production of rolling bearing cages. The invention relates to a semi-finished product of a solid rolling bearing cage formed from a tube by its profile division. The purpose of the invention is a higher utilization of the basic material and energy saving for further mechanical processing. The stated purpose is achieved by dividing the tube in the middle along the circumference of the cylindrical surface by a closed cut of the tooth-shaped shape of the webs of the solid rolling bearing cages into two identical symmetrical parts-semi-finished products of solid rolling bearing cages.

Description

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Semi-finished solid roller bearing cages made of tube

Semi-finished product of solid bearing cages from tube is designed for production of rolling bearing cages. BACKGROUND OF THE INVENTION The present invention relates to a blank of a massive roller bearing cage formed from a tube by its profile distribution. The purpose of the invention is to increase the utilization of the base material and to save energy for mechanical mechanical treatment. This is achieved by dividing the tube in the center along the circumference of the cylindrical surface by means of a closed incision of the toothed webs of the massive roller bearing cages into two identical symmetrical components - the massive roller bearing cages blanks.

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The invention relates to a blank massively; a roller bearing cage formed from a tube by its profile distribution.

Until now, a massive cage of rolling bearings has been formed either from a pipe by milling the contour of only one massive cage from one side thereof, or from preformed semi-finished products, possibly from die forgings.

The weight and caprices of the current blanks made mainly of tubes are relatively large in relation to the size and weight of the finished product. Mechanical processing therefore results in large unusable material waste. Since the massive roller bearing cages are mainly made of brass, this results in low use of non-ferrous metals.

The above drawbacks are overcome by the massive cleat blank approaching the dimensions of the finished product formed from a tube cut in the middle along the circumference of the cylindrical surface by a closed cut into two identical symmetrical components according to the invention.

By providing two symmetrical blanks from a single hollow cylindrical tube, it enables a higher utilization of the base material, thereby saving considerably the non-ferrous metals and the energy required for further mechanical machining.

The attached drawing shows an exemplary embodiment of a pair of solid bearings of rolling bearings of tubes according to the invention, wherein in FIG. 1 is a front elevational view of two blanks of solid tangs formed from a hollow cylindrical tube; FIG. 2 is a partial cross-sectional view taken along line A-A in FIG. 1 and FIG. 3 shows two already separated symmetrical blanks of the massive roller bearings according to the invention.

The tube 2 (FIGS. 1 and 2) is distributed centrally around the circumference of its large surface, e.g. a mechanically closed cut of a toothed shape 2 into two identical symmetrical toothed parts 2, 2, the shape of which corresponds to the shape of the webs of massive roller bearings. The discrete toothed parts 17, 17 are separate blanks of massive roller bearings.

Claims (1)

OBJECT OF THE INVENTION Semi-finished product of solid roller bearings from a tube cut in the center along the circumference of the cylindrical surface by a closed cut into two identical symmetrical parts, characterized in that the cut (2) has a toothed shape of the webs of the solid roller bearings.