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Premium Chrome Steel Bearing Balls & High Precision Metal Spheres

Trusted manufacturer of high-precision bearing balls from China. ISO-certified, G20-G100 grade, HRc60-67 hardness. Engineered for automotive, wind energy, mining, and industrial applications.

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Manufacturing Excellence in Precision Steel Balls

SteelBearingBall.com is a leading manufacturer and exporter of high-precision chrome steel bearing balls based in China. With decades of experience in metallurgy and precision engineering, we specialize in producing bearing balls that meet international standards including G20, G28, G40, G60, and G100 grades.

Our products are widely used in automotive components, wind turbine bearings, mining equipment, slewing rings, and industrial machinery where reliability, hardness (HRc60-67), and dimensional accuracy are critical.

  • ISO-Certified Manufacturing
  • Materials: GCr15, E52100, 100Cr6, SUJ2, AISI 52100
  • Precision Grades: G20 to G100
  • Hardness: HRc 60–67
  • Sizes: 8mm to 100mm+ (Small to Large Solid Spheres)
Chrome Steel Bearing Ball Large High Chrome Steel Balls High Precision Bearing Balls 50.8mm Steel Ball

Our Premium Product Range

Explore our extensive catalog of high-precision steel bearing balls, available in various grades, sizes, and materials to meet the most demanding industrial requirements.

Chrome Steel Bearing Balls 39.688mm

Chrome Steel Bearing Balls 39.688mm G28

  • Material: GCr15, SUJ2, E52100
  • Grade: G28
  • Hardness: HRc61–67
  • Application: Precision Ball Bearings
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High Precision Bearing Balls G40

High Precision Bearing Balls 50.72mm G40

  • Material: E52100, 100Cr6
  • Grade: G40
  • Hardness: ≤HRc67
  • Application: Automotive & Industrial
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Metal Bearing Balls 19.05mm

High Hardness Metal Balls 19.05mm G20

  • Material: AISI 52100, 100Cr6
  • Grade: G20
  • Hardness: HRc62–67
  • Finish: Polished, Smooth Surface
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Steel Ball For Bearing 31.75mm

Steel Ball For Bearing 31.75mm G28

  • Material: AISI52100, GCr15, SUJ2
  • Grade: G28
  • Hardness: HRc61–67
  • Size: 1.25 Inch (31.75mm)
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Solid Steel Balls 44.97mm

E52100 Solid Steel Balls 44.97mm G40

  • Material: Forged Chrome Steel, E52100
  • Grade: G40
  • Hardness: HRc61–67
  • Application: Ball Bearings, Heavy Machinery
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Large Solid Steel Balls 60mm

Large Solid Steel Balls 59.94–60.06mm

  • Material: GCr15SiMn, Forged Chrome Steel
  • Precision: G60 or G40
  • Hardness: HRc60–67
  • Application: Wind Turbine Bearings
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Grinding Steel Balls 1 Inch

G28 1 Inch Grinding Steel Balls

  • Material: AISI 52100, Forged Chrome Steel
  • Grade: G28
  • Hardness: HRc62–67
  • Use: Grinding Media, Mining
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Polished Steel Balls 63.03mm

G40/G60 Polished Steel Balls 63.03mm

  • Material: High Chrome Steel, 100Cr6
  • Precision: G40, G60
  • Finish: High Polished, Smooth Surface
  • Certification: SGS Approved
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Why Choose SteelBearingBall.com?

ISO & SGS Certified

Our manufacturing processes and products meet international quality standards, ensuring reliability and consistency.

Industrial-Grade Materials

We use premium materials including GCr15, E52100, 100Cr6, and AISI 52100 for superior hardness and wear resistance.

Precision Engineering

Available in grades G20 to G100, our balls are manufactured to exacting tolerances for critical applications.

Our Manufacturing Capabilities

38+
Chrome Steel Models
26+
High Precision Types
20+
Large Solid Ball Sizes
34
Stainless Steel Options

Rigorous Quality Control Process

Every steel bearing ball undergoes a comprehensive quality assurance process to ensure dimensional accuracy, surface finish, hardness, and structural integrity.

  • Raw Material Inspection
  • Heat Treatment Monitoring
  • Precision Grinding & Lapping
  • Hardness Testing (HRc 60–67)
  • Dimensional Accuracy Verification (G20–G100)
  • Surface Finish & Roundness Testing
  • Final Packaging & Batch Traceability
Quality Inspection Forged Steel Balls

Frequently Asked Questions

What materials do you use for your bearing balls?

We manufacture bearing balls using high-quality materials including GCr15, E52100, 100Cr6, SUJ2, and AISI 52100 chrome steel. We also offer stainless steel options.

What precision grades do you offer?

Our products are available in precision grades ranging from G20 to G100, with G28, G40, and G60 being the most commonly requested for industrial applications.

What is the hardness range of your steel balls?

Our chrome steel bearing balls have a hardness range of HRc 60 to HRc 67, ensuring excellent wear resistance and durability in demanding environments.

Do you supply large diameter balls for wind turbines?

Yes, we specialize in large solid steel balls from 50mm to 100mm+ for wind turbine bearings, slewing rings, and heavy industrial equipment.

Are your products certified?

Yes, our manufacturing processes and products are ISO-certified, and selected batches are SGS approved for international quality compliance.

Get In Touch With Us

For product inquiries, custom specifications, or bulk orders, please visit our official website to contact the sales team directly.

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