An injection molded conical retainer

By designing protrusions and optimizing lubrication channels on the tapered cage, the wear problem caused by centrifugal force and impact force on the cage was solved, thereby improving the structural stability of the cage and the reliability of the bearing.

CN224479189UActive Publication Date: 2026-07-10SHANDONG GOLDEN EMPIRE PRECISION MACHINERY TECH CO LTD
-1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG GOLDEN EMPIRE PRECISION MACHINERY TECH CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

When the cage rotates at high speed under complex load conditions, it is prone to heat accumulation due to centrifugal force, impact force and sliding friction, which leads to wear in the contact area of ​​the roller end face, and then deformation and breakage, affecting the normal operation of the bearing and the safety of the equipment.

Method used

The design of the injection-molded conical cage increases the thickness of the contact area between the end rings and the upper end face of the roller by extending the protrusions along the axial direction on the inner diameter surfaces of the large and small end rings of the cage. A continuous transition surface is formed at the contact surface between the protrusions and the end face of the roller, which enhances the strength and stress distribution uniformity of the contact area. At the same time, the design of the lubricating oil channel is optimized to reduce friction and wear.

Benefits of technology

It improves the structural stability and fatigue life of the cage, reduces deformation and fracture, ensures the normal operation of the bearing, and enhances the reliability and service life of tapered roller bearings.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224479189U_ABST
    Figure CN224479189U_ABST
Patent Text Reader

Abstract

This application discloses an injection-molded tapered cage, including a large end ring and a small end ring, which are connected by multiple circumferentially distributed window beams. A window is formed between adjacent window beams to accommodate tapered rollers. A protrusion extends along the circumferential direction on the inner diameter surface of the large end ring and / or the small end ring, increasing the thickness of the end ring at the contact point with the upper end face of the roller. This enhances the strength of the end ring in the contact area with the upper end face of the rolling element, allowing it to better resist deformation and wear when subjected to pressure from the tapered rollers and impact forces from external loads. During long-term operation, even under significant forces, it is not prone to significant deformation, thus greatly improving the structural stability of the cage, effectively increasing the fatigue life of the contact area between the cage and the roller end face, reducing failure modes such as deformation and fracture, and ensuring normal operation.
Need to check novelty before this filing date? Find Prior Art