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Diameter Diameter | Show |
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Diameter Diameter | Hide |
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Material Material |
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Shape Shape |
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![]() | Ball |
Hardness Rating Hardness Rating |
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Hardness Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Minimum Temperature Minimum Temperature |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Maximum Temperature Maximum Temperature |
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Appearance Appearance |
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Certificate Certificate |
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Heat Treatment Heat Treatment |
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Yield Strength Yield Strength |
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Color Color |
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![]() | Green |
Fabrication Fabrication |
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Clarity Clarity |
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Opaque |
Dielectric Strength Dielectric Strength |
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Electrical Insulation Rating Electrical Insulation Rating |
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About Stainless Steel
More
About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
More
Tight-Tolerance Hardened 440C Stainless Steel
With a diameter that’s held to a close tolerance, this material is hardened for increased wear and abrasion resistance. 440C is one of the hardest types of stainless steel after heat treating. This material maintains its corrosion resistance in temperatures up to 800° F.
Balls have a reflective, mirror-like appearance.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

- Yield Strength: Not Rated
- Hardness: Rockwell C60 (Very Hard)
- Heat Treatment: Hardened
- Specifications Met: SAE AMS5630
Dia. | Dia. Tolerance | Magnetic Properties | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
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13/32" | -0.0001" to 0.0001" | Magnetic | 10 | 0000000 | 000000 |
Hard Wear-Resistant 52100 Alloy Steel Balls

- Yield Strength: 295,000 psi
- Hardness: Rockwell C60 (Very Hard)
- Specifications Met: See table
Also known as chrome steel, 52100 is an extremely hard and wear-resistant material. These balls are often used in bearings.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Dia. | Dia. Tolerance | Heat Treatment | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
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13/32" | -0.0001" to 0.0001" | Hardened | 100 | 0000000 | 000000 |
High-Strength Wear-Resistant Torlon PAI Balls

- Color: Green
- Max. Temperature: 450° F
- Tensile Strength: 15,000 psi (Excellent)
- Impact Strength: 2.7 ft.-lbs./in. (Good)
- Hardness: Rockwell M106 (Extra Hard)
- For Use Outdoors: No
- Specifications Met: UL 94 V-0
Dimensionally stable and slippery, these balls are often used in high-friction applications, such as nonlubricated rollers and ball bearings.
For technical drawings and 3-D models, click on a part number.
Dia. | Dia. Tolerance | Pkg. Qty. | Pkg. | |
Inch | ||||
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13/32" | -0.001" to 0.001" | 10 | 0000000 | 000000 |