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Hardened Ultra-Wear-Resistant 440C Stainless Steel Balls
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The best choice for high-performance bearings and valves, these 440C stainless steel balls are among the strongest, hardest, and most wear-resistant we offer. They’re passivated to wash away surface particles that cause rust, and they’re polished to a mirror-like finish that contaminants can’t stick to. The result is balls that stay smooth and stand the test of time—even at temperatures up to 800° F. They’re made to strict ISO 3290 standards for roundness and surface quality.
These balls are magnetic, so you can use them in separators, sensors, and automated handling systems that use magnetic pickup or positioning.
Grade 100—Great for mechanical applications where you don’t need the exacting tolerances of Grade 25.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Stainless Steel Balls | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Dia. Tolerance | Hardness | Specs. Met | Magnetic Properties | Appearance | Pkg. Qty. | Pkg. | |||
Grade 100 | ||||||||||
| 13/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K27 | 00000 | ||
Heavy Duty Press-Fit Ball Transfers
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Style A |
Drop-in design makes for easy installation. When used at an angled working orientation, these ball transfers can be used to form support stands.
Weight capacity is given in ball up orientation. Ball down or angled could reduce the weight capacity stated.
Steel Ball—Steel balls are durable.
Style | Ball Dia. | Wt. Cap., lb. | Ht. | Dp. | Dia. | Working Orientation | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|
Steel Ball | ||||||||||
Black-Oxide Steel Housing | ||||||||||
| A | 1/2" | 75 | 1/8" | 5/8" | 13/16" | Ball Up, Ball Down, Angled | 6421K51 | 000000 | ||
Steel Balls
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Wear-Resistant 52100 Alloy Steel—High carbon and chromium content makes this 52100 alloy steel extremely hard and resistant to wear. It’s also known as chrome steel. Often used as bearings, these balls are hardened for increased abrasion and impact resistance.
Tight-Tolerance Wear-Resistant 52100 Alloy Steel—The diameter of these balls is held to a precise tolerance. They’re made from 52100 alloy steel, also known as chrome steel, which has high levels of carbon and chromium to make them extremely hard and resistant to wear. Often used as bearings, these balls are also hardened to increase their abrasion and impact resistance.
Shock-Resistant S2 Tool Steel—This S2 tool steel has been hardened for excellent strength and impact resistance. It has a tough core that resists breaking under shock loads.
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 | Yield Strength, psi | Mechanical Finish | Hardness | Appearance | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Wear-Resistant 52100 Alloy Steel | ||||||||||||
| 13/16" | -0.0001" to 0.0001" | Hardened | 295,000 | — | Rockwell C60 (Extra Hard) | Mirror Like | — | 20 | 9528K38 | 000000 | ||
Tight-Tolerance Wear-Resistant 52100 Alloy Steel | ||||||||||||
| 13/16" | -0.00005" to 0.00005" | Hardened | 295,000 | Ground, Polished | Rockwell C60 (Extra Hard) | Mirror Like | ASTM A295 | 1 | 9528K529 | 00000 | ||
Shock-Resistant S2 Tool Steel | ||||||||||||
| 13/16" | -0.001" to 0.001" | Hardened | 290,000 | Ground, Polished | Rockwell C55 (Extra Hard) | Mirror Like | ASTM A681 | 10 | 1995T19 | 00000 | ||
Plastic Balls
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Delrin® Acetal—Able to hold tight tolerances, these balls resist expanding when exposed to heat and moisture. They have a naturally slippery, wear-resistant surface. Use them for bearings and low-load rolling applications. Delrin® acetal resin is also known as acetal homopolymer.
Dia. | Dia. Tolerance | Min. Temp., ° F | Max. Temp., ° F | Color | Food Industry Std. | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|
Multipurpose | ||||||||||
Delrin® Acetal | ||||||||||
| 13/16" | -0.001" to 0.001" | -20 | 180 | White | FDA Standard | 1 | 9614K62 | 00000 | ||
Extra-Hard C2 Tungsten Carbide
Balls
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Dia. | Dia. Tolerance | Mechanical Finish | Yield Strength | Hardness | Temper Rating | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 13/16" | -0.0001" to 0.0001" | Polished | Not Rated | Rockwell C75 (Extra Hard) | Not Rated | 1 | 9598K81 | 000000 | ||
Heavy Duty Stud-Mount Ball Transfers
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Style E |
Move heavy loads in any direction with these stud-mount ball transfers. They handle higher weight capacities than standard ball transfers.
Steel Ball—Steel balls are durable.
Angled Working Orientation—Ball transfers with an angled working orientation can be used to form support stands.
Weight Capacity—Weight capacity is given for the ball up orientation. Using these ball transfers in a ball down or angled orientation could reduce the weight capacity stated.
Style | Ball Dia. | Wt. Cap., lb. | Ht. | Dia. | Working Orientation | Thread Size | Stud Lg. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Steel Ball | |||||||||||
Painted Steel Housing | |||||||||||
| E | 1/2" | 75 | 3/4" | 13/16" | Ball Up, Ball Down, Angled | 5/16"-24 | 5/8" | 6460K48 | 000000 | ||
