0510-83570861
Automatic Bearing Inner & Outer Ring Groove Superfinishing Machine Manufacturer
As a professional manufacturer and supplier, we specialize in automatic inner and outer ring groove superfinishing machines for ball bearings, available in dual-station configurations for high-efficiency precision finishing.
Our machines utilize fine abrasive stones or tapes to remove microscopic material layers, significantly improving surface finish, roundness, and dimensional accuracy of bearing components — delivering reduced friction, enhanced performance, and extended service life.
Equipped with high-speed spindles, fully automated control systems, and customizable processing parameters, our superfinishing solutions are trusted by manufacturers across automotive, aerospace, and industrial machinery sectors worldwide.
Our superfinishing systems combine mechanical processing with abrasive tape and slurry technology, achieving surface roughness as low as Ra ≤ 0.02 µm — delivering the mirror-finish quality essential for low-noise, high-speed bearing applications.
Every machine in our lineup features servo-controlled axes, programmable tooling positions, and real-time diameter compensation, ensuring consistent dimensional accuracy and repeatable part-to-part quality across high-volume production runs.
Supporting up to 8 processing heads per line, our machines are engineered for multi-station operation and seamless integration into automated production cells — maximizing output without compromising precision.
Our hybrid processing solution integrates rough grinding and fine superfinishing within a single machine footprint, reducing equipment investment, floor space, and cycle time while maintaining superior surface quality.
From vibration feeders and auto-loading systems to robotic arm interfaces, in-line measurement stations, and remote monitoring, our machines are fully modular and ready for smart factory integration.
| Specification | Details | Value to You |
|---|---|---|
| Ball Diameter Range | 2 mm – 50 mm | Covers miniature to large-scale bearing production in a single platform |
| Processing Stations | Rough grinding, finish grinding, polishing, and cleaning | Full-process capability eliminates the need for multiple machines |
| Tool Life Monitoring | Real-time wear compensation with automatic correction | Consistent output quality with minimal operator intervention |
| Tool Materials | CBN, diamond, alumina, and abrasive polishing tape | Flexible tooling options for various bearing materials and finish requirements |
| Coolant System | Filtered oil or emulsified fluid with closed-loop circulation | Stable thermal control, reduced fluid waste, and a cleaner working environment |
Understanding the core components of a superfinishing machine helps you evaluate build quality, processing capability, and long-term reliability. Here is what makes a high-performance ball bearing superfinishing machine:
The spindle holds and rotates the bearing ring at precisely controlled speeds during processing. High-rigidity spindle design minimizes vibration and runout, directly contributing to consistent surface finish and roundness accuracy across every part.
The primary finishing tool — either an oscillating abrasive stone or a continuous abrasive tape — removes microscopic material from the bearing raceway surface. The choice of abrasive type, grit, and oscillation frequency determines the achievable surface roughness (Ra value) and material removal rate.
Precise regulation of the contact force between the abrasive and the workpiece is critical. An intelligent pressure control system automatically adjusts applied force in real time, preventing over-cutting while ensuring uniform
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No. 52-1 Zhang Road, Meicun Industrial Park, New District, Wuxi City, Jiangsu, China.