High-Precision Steel Balls for Global Manufacturers

Engineered for excellence. We supply Tier-1 bearing manufacturers worldwide with GCr15 chrome steel balls of unmatched precision and durability.

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Excellence in Precision

With decades of experience in the metallurgy and bearing industry, our factory stands at the forefront of steel ball manufacturing in China. We specialize in high-carbon chromium bearing steel (GCr15), delivering components that meet the rigorous demands of automotive, aerospace, and industrial machinery sectors.


Our commitment to technical innovation and stable quality has made us a trusted partner for global bearing brands seeking reliable OEM/ODM solutions.

Steel ball manufacturing facility exterior

Production Excellence

Our facility is equipped with automated cold heading, flashing, and heat treatment lines to ensure consistency across every batch.

Product Range

High precision GCr15 steel balls

GCr15 Chrome Steel Balls

Our flagship product designed for high-load, high-speed bearing applications.

  • Precision Grade: G5, G10, G16, G20, G28
  • Hardness: HRC 60-66
  • Material: AISI 52100 / GCr15 / 100Cr6
  • Size Range: 0.5mm - 150mm
  • Surface Finish: Ra < 0.01um

Quality Assurance

ISO 9001 Certified Quality System

Our manufacturing process is strictly governed by the ISO 9001:2015 quality management system. Every shipment undergoes 100% optical inspection and rigorous laboratory testing to ensure zero-defect delivery to our global clients.

ISO 9001 Quality Certificate

Advanced Testing Equipment

Roundness testing

Roundness Measuring

Hardness testing

Hardness Testers

Surface roughness analysis

Roughness Analysis

Global Sales & Support

For RFQs, technical specifications, or factory audits, please contact our international trade department via email.