Product overview
AISI 52100, GCr15 and 100Cr6 are closely corresponding bearing-steel designations in different standards. Specify the required material standard and acceptance criteria in your enquiry.
GCr15 / 100Cr6 are closely corresponding material designations, not certifications or an unconditional substitution. Confirm the governing standard and material certificate for each order.
Product specifications
Current product specification| Material family | High-carbon chromium bearing steel |
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| China designation | GCr15 |
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| US designation | AISI 52100 |
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| European designation | 100Cr6 |
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| Precision grade | G10 |
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Include the diameter, tolerance, hardness, surface and inspection requirements from your drawing. The quotation and agreed order specification define the supply and acceptance requirements.
Featured sizes · G10
Metric values shown are common rounded designations. State the governing nominal dimension and tolerance in your RFQ. These are featured sizes, not the complete supply range.
See our Steel Ball Size & Weight Conversion Chart ↗Application requirements
Use your assembly requirements to define material, tolerance and inspection. Suitability must be assessed for the actual operating conditions.
Packaging & delivery requirements
Include these details in your enquiry so the quotation can cover how you will receive and use the order.
01Samples & order quantities
List each diameter and grade separately. Identify sample quantities, the first order and any repeat demand, with units for every quantity.
02Pack quantities & labels
Specify pieces or net weight per pack, your part number, label language and any artwork. Include storage and handling requirements.
03Delivery & receiving
Provide the destination, requested delivery date and preferred shipping terms. Include receiving limits such as maximum pack weight.
Packaging, sample arrangements, MOQ and lead time are confirmed with the quotation for your specification and quantity.
View the complete quotation checklist ↗Chrome steel ball FAQ
Does G10 identify the material or the size?
G10 identifies the precision grade. Specify the material, nominal diameter and governing standard separately. Add any hardness, surface or inspection requirements from your drawing.
Can I enquire with an inch designation?
Yes. Our featured inch sizes are 5/32, 3/16 and 1/4 inch. State whether the inch or metric dimension controls, together with the required tolerance. The conversion chart helps with size and weight reference.
Can I request another diameter?
Other diameters can be custom manufactured upon request. The three featured sizes and the reference chart do not limit the sizes you can enquire about. Include your nominal diameter, grade and quantity.
What should I include for samples or repeat orders?
Separate sample demand from production quantities. Include your approval criteria, drawing revision, packaging and inspection documents. Sample arrangements, price and delivery timing are confirmed in the quotation.
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