Split type self-rotating propeller bearing retainer

By using a split-type self-rotating strut bearing cage, and utilizing a combination of wear-resistant aluminum alloy and copper alloy layers, the strut rotation generates rolling friction. Combined with an optimized lubrication structure, the problem of copper cage wear debris is solved, achieving low-resistance rolling contact and stable lubrication, thereby improving the high-speed heavy-load performance and lifespan of the bearing.

CN122407686APending Publication Date: 2026-07-17SHANDONG GOLDEN EMPIRE PRECISION MACHINERY TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG GOLDEN EMPIRE PRECISION MACHINERY TECH CO LTD
Filing Date
2026-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing copper cages generate a large amount of wear debris during high-speed operation, leading to accelerated bearing wear, lubrication failure, and jamming, which affects bearing life and reliability.

Method used

The split-type self-rotating support bearing cage uses aluminum alloy and copper alloy wear-resistant layer. The support can rotate to generate rolling friction. Combined with the inclined guide slope and concave oil groove design, it ensures a stable supply of lubricating oil and reduces friction and wear.

Benefits of technology

It significantly reduces rotational inertia, decreases frictional heat and wear, extends bearing life, reduces maintenance frequency, and is suitable for high-speed, heavy-load operating conditions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122407686A_ABST
    Figure CN122407686A_ABST
Patent Text Reader

Abstract

本申请提供一种分体式自转支柱轴承保持架，包括制造材料包括铝的上下对称布置的两个底环以及若干支撑支柱；底环均匀开设有多个轴向支柱装配孔，各支柱两端间隙穿设于对应支柱装配孔内部；支柱配合端部与支柱装配孔内壁分别设有第一耐磨自润滑件与第二耐磨自润滑件；轴承内部润滑介质可导通至第一耐磨自润滑件与第二耐磨自润滑件配合摩擦界面并形成稳定动压润滑油膜，支柱能够绕自身轴线自转，使支柱与滚动体之间形成低阻滚动接触配合，铝合金替代铜合金，密度更低、自重显著下降，保持架整体转动惯量大幅减小，运转惯性冲击显著降低，支柱可自转，把保持架与滚子滑动摩擦改为滚动摩擦，运转冲击、碰撞作用力大幅减弱，减少摩擦发热。
Need to check novelty before this filing date? Find Prior Art