What are the standards for miniature bearing steel balls?

Miniature bearing steel ball refers to the smaller size bearing steel ball. The raw material is mainly bearing steel (GCr15). According to the alloy composition of the material, it can be divided into stainless steel balls, chromium steel balls and carbon steel balls.

Dimensions of miniature bearing steel balls: 0.7mm-2mm

Scope of application: miniature bearings, instruments, motors, slide rails, roller screws

Product use description of miniature bearing steel ball:

Overview: Bearings are subjected to extreme pressure and friction during work, so bearing steels are required to have high and uniform hardness and wear resistance, as well as high elastic limits. The requirements for the uniformity of the chemical composition of the bearing steel, the content and distribution of non-metallic inclusions, and the distribution of carbides are very strict. Bearing steel, also known as high carbon steel, has a carbon content of about 1% and a content of carbon Wcr. 0.5%-1.65%. Bearing steel is divided into six categories: high carbon bearing steel, non-carbon bearing steel, carburizing bearing steel, stainless bearing steel, medium and high temperature bearing steel and antimagnetic bearing steel.

Micro-bearing steel ball characteristics: hardness can reach HRC62-65 degrees, the material has good wear resistance, the precision can reach one ten thousandth of a millimeter after cold processing into steel balls, and the surface is mirror-like. The color is chrome, but it cannot be welded.

Miniature bearing steel ball application: Bearing steel ball is widely used in high-speed and low-noise bearings, bicycles, motorcycles, automobiles, slide rails, universal balls, luggage, electronic industry, and can also be used to grind other media.

Precision of miniature bearing steel ball: G5, G10

Gcr15 bearing steel ball chemical composition (AISI52100)：

C: 0.95% –1.10%

Si: 0.15%–0.35%

Mn: 0.50% max.

P: 0.025% max.

S: 0.025% max.

Cr: 1.30% –1.60%

To purchase miniature bearing steel balls and high-precision miniature bearing steel balls, choose Changzhou Feige Steel Ball Co., Ltd. We are a well-known steel ball manufacturer from China, with more than 28 years of steel ball manufacturing experience and a world-class steel ball manufacturing team and designers, focusing on the production of each steel ball. If you have any needs, please contact us in time!