Method for filling rolling elements in a bearing and use thereof

By embedding a filling support between the bearing rings and applying a compressive load, the problem of limited loading angle in traditional assembly methods is solved, achieving more efficient rolling element filling, reducing the risk of bearing damage, and improving the applicability of heavy-duty bearings.

CN114483807BActive Publication Date: 2026-06-09AB SKF SKF PATENT DEPARTMENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AB SKF SKF PATENT DEPARTMENT
Filing Date
2020-10-23
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The traditional Conrad assembly method has a limited loading angle when loading rolling elements, which makes it difficult to meet the requirements of heavy-duty bearings. Furthermore, forced assembly may cause plastic deformation of the inner and outer rings and surface scratches, increasing the risk of bearing failure.

Method used

By embedding a filling support between the bearing rings and applying a compressive load within a predetermined circumferential angle range using a bearing ring extrusion component, a window suitable for filling the rolling elements is formed, thus avoiding excessive deformation of the inner and outer rings.

Benefits of technology

It significantly reduces the potential damage to bearings caused by assembly operations, increases the loading angle, meets the requirements of heavy-duty bearings, and reduces bearing failure rate.

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Abstract

A method for packing rolling elements (30) in a bearing (1) comprises the following operations: fixing a first bearing ring (10, 20) with bearing ring fixing members (50, 60, 70) to prevent it from being displaced when subjected to radial extrusion; embedding two first packing supports (31) between the raceways of the first and second bearing rings according to a predetermined circumferential angle (α), which divides the bearing (1) into an extrusion zone within the circumferential angle (α) and a deflection zone outside the circumferential angle (α); and applying an extrusion load (F) directed radially to the first bearing ring (10, 20) to the circumferential portion (21, 11) of the second bearing ring (20, 10) within the extrusion zone with bearing ring extrusion members (40), so as to reduce the radial distance between the raceways of the first and second bearing rings within the extrusion zone and form a window suitable for packing rolling elements (30) within the deflection zone.
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