Mandrel bearing assembly for drawing leather roller

By using a mandrel extension as a bearing support in the drawing roller, and by setting a detachable end cover and outer shell, the problems of misalignment and wear during the assembly and disassembly of the mandrel and bearing assembly structure are solved, thus enabling convenient replacement of the roller and efficient operation of the equipment.

CN224227316UActive Publication Date: 2026-05-12YANCHENG GOLDEN TOP TEXTILE BEARING CO LTD
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Patent Information

Application Number
CN202521192604.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-11
Publication Date
2026-05-12
Estimated Expiration
2035-06-11

AI Technical Summary

Technical Problem

The existing mandrel and bearing assembly structure of drawing sliver rollers is prone to misalignment and wear during disassembly and assembly, which affects yarn quality and equipment operation.

Method used

The extension of the mandrel is used as the bearing support. The outer diameter of the bearing outer ring is no larger than the outer diameter of the mandrel. A detachable end cover and a detachable outer shell are provided to avoid disassembling the inner ring of the bearing. The installation and removal of the roller are achieved through the outer ring of the bearing.

Benefits of technology

This technology enables convenient replacement and grinding of the rollers, extends the service life of the bearings, adjusts the gap between the rollers and adjacent rollers, and improves the equipment's performance.

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Abstract

The utility model discloses a mandrel bearing assembly for a drawing leather roller, which comprises a mandrel and bearings coaxially arranged at the two ends of the mandrel, and is characterized in that the two ends of the mandrel are respectively and integrally contracted and extended to form cylindrical bearing supporting parts, and are respectively provided with a bearing outer ring; the bearing outer ring is arranged on the bearing supporting part in a sleeving mode, and balls and / or roller pins are arranged between the bearing outer ring and the bearing supporting part in a sleeving mode. The bearing supporting part, the balls and / or roller pins and the bearing outer ring jointly form a bearing structure. The outer diameter of the bearing outer ring is not greater than that of the mandrel; and a detachable end cover is arranged at the outer end of the bearing outer ring. When the leather roller is polished or replaced, the bearing does not need to be detached, operation is convenient, and the service life of the bearing is prolonged.
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