PRECISION COMPONENTS. CONNECTED SUPPLY.

Precision chrome steel balls.
Made for your application.

BOYA supplies G10 precision chrome steel balls, with G5 available on request through our manufacturing partners. We also supply carbon steel balls, stainless steel balls and bearing components, coordinating custom production and export delivery to your requirements.

Chrome Steel Balls Carbon Steel Balls Stainless Steel Balls Bearing components

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FOR BEARING MANUFACTURERS & INDUSTRIAL DISTRIBUTORS

HIGH-CARBON CHROMIUM BEARING STEELAISI 52100 / GCr15 / 100Cr6

G10PRIMARY GRADE · G5 ON REQUEST

ISO 9001 & IATF 16949

Certified manufacturing partner

China industrial manufacturing network

Material control · Process control · Quality inspection

Custom production & export delivery

Specification review · Batch traceability · Export packaging

01 / OUR PRODUCT FOCUS

Small components. Critical connections.

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FEATURED · G10

Chrome Steel Balls

AISI 52100 chrome steel balls are precision bearing balls made from high-carbon chromium bearing steel. BOYA supplies G10 precision chrome steel balls, with G5 available on request through our manufacturing partners.

Material designation: AISI 52100 / GCr15 / 100Cr6
Precision grade: G10 (primary) / G5 (on request)
Diameter range: 0.50–82.55 mm
Featured sizes: 5/32″ · 3/16″ · 1/4″

These are our three featured sizes. Other diameters within 0.50–82.55 mm can be custom ordered.

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CUSTOM PRODUCTION

Carbon Steel Balls

Low and high carbon steel balls for mechanical components, with polishing, heat-treatment and plating options.

Material designations: Low carbon: AISI 1010 / 1015; high carbon: AISI 1085
Diameter range: 0.5–50 mm
Precision grades: G100–G1000

Provide material, diameter, grade and quantity for a specification-based quotation.

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CUSTOM PRODUCTION

Stainless Steel Balls

Stainless steel balls in 300-series and hardenable 420/440C grades for mechanical, fluid and corrosion-related applications.

Material designations: 420A / 420B / 420C / 440C; 302 / 304 / 304L / 316 / 316L
Diameter range: 0.5–150 mm
Precision grades: G10–G1000

Provide material, diameter, grade and quantity for a specification-based quotation.

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Looking for bearing components?

Rollers, needle rollers, cages and other components manufactured to your drawing.

Discuss your requirement

02 / FEATURED PRODUCTION SIZES

A precise place to start.

G10 chrome steel balls in three featured sizes. Other diameters within 0.50–82.55 mm are available to order.

5/32″

≈3.9688 mm / G10

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3/16″

4.7625 mm / G10

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1/4″

6.35 mm / G10

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Material designation ≠ precision grade ≠ diameter. Each is specified separately.View technical details ↗

Working in mm, inches, pieces or kilograms?

Search the size chart and carry a selected diameter into your RFQ. Weights are approximate reference values.

Size & Weight Chart ↗

03 / APPLICATIONS

Built around your industry.

From a bearing drawing to a repeat supply requirement, the right conversation starts with how the component will be used.

Bearing manufacturing

Precision begins with the rolling element.

Electric motors

Start with the bearing specification.

Automotive & motorcycle

Align the part, the process and the documentation.

Agricultural machinery

Specify for the working environment.

Industrial machinery

A clear specification. A coordinated supply route.

General industrial applications

Match the material to the task.

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Custom production for distributors.

Bring your multi-size, multi-material and packaging requirements together.

Distributor solutions →

ROUNDNESS INSPECTION

04 / QUALITY COORDINATION

Confidence starts with what you can verify.

Clear specifications, agreed inspection methods and traceable records. We coordinate the quality documentation and inspection requirements for your order.

SpecificationsDEFINED REQUIREMENTS

Batch recordsQUALITY DOCUMENTATION

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05 / MANUFACTURING & SUPPLY NETWORK

China industrial manufacturing network.

BOYA organizes custom production, quality requirements and export delivery through its industrial manufacturing network in China.

Aerial view of manufacturing facilities in Shandong, China

MANUFACTURING & SUPPLY · SHANDONG, CHINAExplore our network ↗

06 / WHY BOYA INDUSTRIES

Clarity from enquiry to supply.

One list for every size

Send each material, diameter, grade and quantity as a separate line item for a clear quotation.

Inspection requirements in the order

Define the checks, acceptance criteria and records your team needs before placing the order.

Packaging and delivery together

Include sample quantities, pack sizes, labels and delivery destinations in the same enquiry.

07 / BUYING RESOURCES

From a specification to an enquiry.

All technical resources ↗

SIZE & WEIGHT

Precision chrome steel balls.
Made for your application.