1.2mm–7.938mm Steel Balls for Small Bearings
author: P
2026-04-20
1.2mm–7.938mm Steel Balls for Small Bearings
In miniature motors, precision instruments, home appliances and light-duty transmission equipment, small-size bearings demand high accuracy, low noise and long service life. The dimensional precision and surface quality of bearing steel balls directly determine the overall performance of the final product. Focusing on miniature and small bearing applications, Feige Steel Ball specializes in providing a complete range of steel balls from 1.2mm to 7.938mm, featuring consistent dimensions, excellent wear resistance and fatigue resistance, making it an ideal choice for miniature bearing matching.
The size range of 1.2mm–7.938mm covers most miniature deep groove ball bearings, fan bearings, motor bearings, power tool bearings and automotive micro-bearings. This segment requires extremely high processing stability. Feige adopts dedicated production lines for small steel balls, with refined control from raw material selection, cold heading, heat treatment to fine grinding and polishing. These processes ensure the steel balls resist deformation and wear under high-speed rotation, while maintaining exceptionally low vibration and noise levels.
Our products are mainly manufactured from GCr15 bearing steel and 304/440C stainless steel, with uniform hardness and compact microstructure. Dimensional accuracy reaches grades G10–G20, with tight tolerance control, optimized roundness and surface roughness suitable for precision bearing assembly. This effectively improves fitting efficiency and operational stability. During mass production, Feige implements online dimensional inspection and full-process sampling tests to ensure high consistency within each batch, avoiding issues such as bearing jamming or abnormal noise caused by uneven steel balls.
As a source manufacturer, Feige maintains ready stock for commonly used sizes including 1.2mm, 2.381mm, 3.175mm, 4.763mm, 6.35mm and 7.938mm. We support both small-batch sampling and large-volume stable supply to meet customers’ urgent delivery requirements. The company has obtained ISO9001, ISO45001, IATF16949 and other certifications, with standardized quality management systems and complete traceable inspection data, providing reliable supply chain support for miniature bearing manufacturers worldwide.
As precision and miniaturization continue to drive industry development, demand for 1.2mm–7.938mm bearing steel balls is steadily rising. With mature technology, stable production capacity and strict quality control, Feige supplies high-consistency miniature bearing steel balls to global customers. By perfecting performance in small dimensions, we help small bearings achieve higher efficiency, smoother operation and longer service life.
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