Cylindrical roller bearing inner ring double raceway one-time grinding cutting device

By designing a synchronous grinding wheel and pitch adjustment assembly for a single-stage grinding and cutting device for the inner ring of cylindrical roller bearings with double raceways, the positioning deviation and inconsistency problems caused by sequential processing are solved, achieving efficient and precise double raceway processing and improving the machining accuracy and performance of the bearings.

CN224509262UActive Publication Date: 2026-07-17JM BEARING GRP
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JM BEARING GRP
Filing Date
2025-06-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing cylindrical roller bearing inner ring double raceway grinding and cutting device adopts a sequential processing process, which leads to positioning deviations caused by multiple clamping, affecting concentricity and dimensional accuracy. Furthermore, inconsistencies arise due to factors such as machine tool condition and grinding wheel wear during the two grinding processes.

Method used

A single-stage grinding and cutting device for the inner ring of a cylindrical roller bearing with two raceways was designed. It employs two sets of synchronous grinding wheels and a pitch adjustment assembly. Through the coordinated transmission of the worm gear pair, bevel gear set, and wedge block, the device achieves synchronous processing of the two raceways, ensuring concentricity and dimensional accuracy. The device also improves the load-bearing capacity of the raceways through the arc groove design.

Benefits of technology

This improved processing efficiency, avoided positioning deviations, ensured the concentricity and dimensional accuracy of the double raceways, and enhanced the bearing's load-bearing capacity and service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224509262U_ABST
    Figure CN224509262U_ABST
Patent Text Reader

Abstract

This utility model provides a one-time grinding and cutting device for the inner ring of cylindrical roller bearings with double raceways, belonging to the field of cylindrical roller bearing processing technology. It solves the problem of concentricity and accuracy affecting quality caused by the sequential processing and multiple clamping of existing grinding and cutting devices for the inner ring of cylindrical roller bearings with double raceways. The device includes a machine tool, a transmission frame, a drive mechanism, grinding wheels, a pitch adjustment mechanism, a grinding assembly, and a pitch adjustment assembly. The transmission frame is located on the upper part of the machine tool; the drive mechanism is bolted to the outside of the transmission frame; two sets of grinding wheels are provided, and the two sets of grinding wheels are located inside the transmission frame; the pitch adjustment mechanism is located inside the transmission frame, between the two sets of grinding wheels; the grinding assembly is located on the upper part of the machine tool; and the pitch adjustment assembly is located inside the pitch adjustment mechanism. This utility model has advantages such as improved efficiency, reduced deviation, and convenient pitch adjustment.
Need to check novelty before this filing date? Find Prior Art