A multi-stage sealing bearing

By designing a multi-stage sealed bearing bush, and utilizing a combination of liquid-containing chambers, arc-shaped grooves, connecting grooves, and capillary channels, the problem of friction and wear caused by incomplete lubricating oil film is solved. This achieves multi-stage blocking and continuous oil supply of lubricating oil, improving the sealing performance of the bearing bush and the shaft, and increasing assembly efficiency.

CN224453415UActive Publication Date: 2026-07-03JIANGSU FEIYUE BEARINGS
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU FEIYUE BEARINGS
Filing Date
2025-09-29
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

When the shaft is not running or at low speed, the existing bearing bush cannot form a complete lubricating oil film, which leads to excessive friction between the bearing bush and the shaft, increasing wear and affecting sealing performance.

Method used

Design a multi-stage sealing bearing bush, comprising bearing bush one and bearing bush two distributed vertically, with internal liquid chamber, arc-shaped groove and connecting groove, combined with capillary channel and positioning mechanism to achieve multi-stage blocking and continuous oil supply of lubricating oil, and achieve sealing through the cooperation of sealing groove and sealing strip.

Benefits of technology

Effectively control lubricating oil leakage, maintain continuous oil supply, improve assembly efficiency, reduce wear, and ensure efficient lubrication and sealing between the bearing and the shaft.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224453415U_ABST
    Figure CN224453415U_ABST
Patent Text Reader

Abstract

This utility model discloses a multi-stage sealing bearing bush, specifically relating to the field of bearing bush technology. It includes a first bearing bush and a second bearing bush distributed vertically. Both the first and second bearing bushes have liquid-containing cavities on their inner surfaces. A liquid-retaining mechanism is provided inside the first bearing bush. The liquid-retaining mechanism includes multiple arc-shaped slots and connecting grooves located inside the first and second bearing bushes, arranged sequentially from the inside to the outside. The opening on one side of the connecting groove communicates with the bottom of the inner wall of the liquid-containing cavity. This utility model utilizes multiple liquid-containing cavities, arc-shaped slots, and connecting grooves to form independent chambers, providing multi-stage obstruction of hydraulic oil, increasing leakage resistance, and continuously and stably delivering lubricating oil to the shaft surface. Combined with gaskets, it achieves multi-point sealing, effectively controlling leakage, ensuring continuous oil supply, and achieving efficient and stable lubrication. The use of inserts and other components for guiding and positioning eliminates the need for repeated adjustments during assembly, saving assembly time and improving bearing bush assembly efficiency.
Need to check novelty before this filing date? Find Prior Art