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Specialized company in manufacturing steel ball & tapered roller for precise ball bearings

Steel Ball

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Precise Steel Ball

Precise Steel Ball

Premium precision steel ball with high-end surface condition

  • Material: High carbon chrome bearing steel
  • Application: Components of various bearing products such as automobile, pump, tools, and robot arms
High-precision Steel Ball

High-precision Steel Ball

Premium precision steel ball with high-end surface condition

  • Material: High carbon chrome bearing steel
  • Application: Used for low noise premium bearing of hybrid and electric automobiles
Carbonitrided Steel Ball

Carbonitrided Steel Ball

A steel ball with high hardness and durability by applying special heat treatment

  • Material: High carbon chrome bearing steel + Carbonitrided heat treatment
  • Application: High durability is required, used for highly tough condition
Shoe Ball

Shoe Ball

The customized soft ball manufactured by spheroidizing annealing heat treatment

  • Material: High carbon chrome bearing steel
  • Application: Applied on automobile compressors and various tools, etc.

Applied Field

Ball Bearing Parts, Automobile Parts, Home Appliance Parts, Mechanical Rotating Parts, etc.

Hardness (High Carbon Chrome Steel Ball)

mm inch Hv HRC
0.3mm ~ 3.0mm 0.025̋ ~ 7/64̋ 772 ~ 900 63 ~ 67
3.5mm ~ 30.0mm 1/8̋ ~ 1 1/8̋ - 62 ~ 67
32mm ~ 65mm 1 3/6̋ ~ 4 1/2̋ - 61 ~ 67

Grade

Range of Size Grade Applicable Standrds
1/8̋(3.175mm) ~ 1/2̋(12.7mm) G5, G10 ~ G40 KS B 2001, ISO 3290, GB 308, DIN5401, ABMA, JIS
17/32̋(13.494mm) ~ 1̋(25.4mm) G10, G16 ~ G40
1-1/8̋(28.575mm) ~ 2-1/2̋(63.5mm) G16, G20 ~ G200