System of Measurement System of Measurement |
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Shape Shape |
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Appearance Appearance |
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Hardness Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Maximum Temperature Maximum Temperature |
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Yield Strength Yield Strength |
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Performance Properties Performance Properties |
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Certificate Certificate |
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For Use With For Use With |
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Heat Treatment Heat Treatment |
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Density Density |
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Specifications Met Specifications Met |
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Mechanical Finish Mechanical Finish |
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Dielectric Strength Dielectric Strength |
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About Aluminum
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About Plastic
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About Stainless Steel
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About Tool Steel
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About Copper, Brass, and Bronze
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About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
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Hardened Bearing-Quality 440C Stainless Steel
- Yield Strength: Not Rated
- Hardness: Rockwell C60 (Very Hard)
- Heat Treatment: Hardened
- Specifications Met: SAE AMS5630
These balls are hardened for increased wear and abrasion resistance. 440C is one of the hardest types of stainless steel after heat treating. It's often used for bearings and valves. This material maintains its corrosion resistance in temperatures up to 800° F.
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 ACTIVITY after your order ships.
| Dia. | Dia. Tolerance | Magnetic Properties | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
|---|---|---|---|---|---|
| 9/16" | -0.0005" to 0.0005" | Magnetic | 10 | 0000000 | 00000 |
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 ACTIVITY 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 | |||||
|---|---|---|---|---|---|
| 9/16" | -0.0001" to 0.0001" | Magnetic | 5 | 0000000 | 000000 |
Corrosion-Resistant 316 Stainless Steel
The addition of molybdenum gives 316 stainless steel excellent corrosion resistance. Use it in a variety of marine and chemical-processing applications. It maintains its corrosion resistance up to the maximum temperature.
Balls have a reflective, mirror-like finish.
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 ACTIVITY after your order ships.
- Yield Strength: Not Rated
- Hardness:
Inch Sizes: Rockwell B90 (Medium)
Metric Sizes: Rockwell C25 (Hard) - Heat Treatment: Not Rated
- Heat Treatable: No
- Specifications Met: Not Rated
| Dia. | Dia. Tolerance | Mechanical Finish | Appearance | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
Inch | ||||||
| 9/16" | -0.001" to 0.001" | Tumbled | Mirror-Like | 5 | 00000000 | 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 ACTIVITY after your order ships.
| Dia. | Dia. Tolerance | Heat Treatment | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
|---|---|---|---|---|---|
| 9/16" | -0.0001" to 0.0001" | Hardened | 50 | 0000000 | 000000 |
Low-Carbon Steel Balls
- Yield Strength: 44,000 psi
- Hardness: Rockwell C60 (Very Hard)
Low-carbon steel offers good machinability with excellent weldability. It's widely used for parts that don’t require high strength, such as spacers.
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 ACTIVITY after your order ships.
| Dia. | Dia. Tolerance | Heat Treatment | Mechanical Finish | Pkg. Qty. | Pkg. | |
Mirror-Like | ||||||
|---|---|---|---|---|---|---|
| 9/16" | -0.005" to 0.005" | Case Hardened | Tumbled | 100 | 00000000 | 000000 |
Ultra-Hard C2 Tungsten Carbide Balls
- Yield Strength: Not Rated
- Hardness: Rockwell C75 (Very Hard)
- Temper Rating: Not Rated
Tungsten carbide, sometimes called carbide, is harder than Corrosion-Resistant Tungsten with excellent wear resistance. Use it to machine long-lasting tools, such as end mills and inserts.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Mechanical Finish | Pkg. Qty. | Pkg. | |
| 9/16" | -0.0001" to 0.0001" | Polished | 1 | 0000000 | 000000 |
260 Brass Balls
- Yield Strength: 57,000 psi
- Hardness: Rockwell B75 (Medium)
- Temper: Not Rated
- Heat Treatable: No
The most formable brass we offer, 260 offers better weldability than 300 series brass but it’s not as machinable. Sometimes called cartridge brass, it's commonly used for ammunition casings, radiator components, and decorative door hardware.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance Range | Mechanical Finish | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
|---|---|---|---|---|---|
| 9/16" | -0.001" to 0.001" | Tumbled | 10 | 0000000 | 000000 |
Hollow Corrosion-Resistant 3003 Aluminum Balls
- Yield Strength: Not Rated
- Hardness: Not Rated
- Temper: O (Annealed)
- Fabrication: Cold Rolled
Hollow construction reduces weight and allows these balls to float. They’re widely used in bearings and valves. 3003 aluminum stands up to outdoor use, as well as exposure to chemicals. It offers a good combination of strength, formability, and weldability.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Heat Treatment | Temperature Range, °F | Pkg. Qty. | Pkg. | |
| 9/16" | -0.010" to 0.010" | Annealed (Softened) | -300° to 300° | 10 | 0000000 | 000000 |
Hardened Shock-Resistant S2 Tool Steel
- Yield Strength: 290,000 psi
- Hardness: Rockwell C55 (Very Hard)
- Specifications Met: ASTM A681
This S2 tool steel has been hardened for excellent strength and impact resistance. It has a tough core that resists breaking under shock loads.
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 ACTIVITY after your order ships.
| Dia. | Dia. Tolerance | Mechanical Finish | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
|---|---|---|---|---|---|
| 9/16" | -0.001" to 0.001" | Ground and Polished | 25 | 0000000 | 000000 |
Wear-Resistant Easy-to-Machine Delrin® Acetal Resin Balls
- Color: White
- Temperature Range: -20° to 180° F
- Tensile Strength: 10,000-11,000 psi (Good)
- Impact Strength: 1-1.5 ft.-lbs./in. (Poor)
- Hardness: Rockwell R120-R122 (Hard)
- For Use Outdoors: No
- Specifications Met: FDA Compliant 21 CFR 177.2480
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.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Pkg. Qty. | Pkg. | |
Inch | ||||
|---|---|---|---|---|
| 9/16" | -0.001" to 0.001" | 25 | 0000000 | 00000 |
Wear-Resistant Nylon Balls
- Color: Off-White
- Temperature Range: Not Rated
- Tensile Strength: 11,200-12,300 psi (Good)
- Impact Strength: 0.6-1.4 ft.-lbs./in. (Poor)
- Hardness: Rockwell R108-R121 (Hard)
- For Use Outdoors: No
Use these nylon 6/6 balls as bearings and in sealing applications. They have a slippery surface that reduces wear caused by friction.
| Dia. | Dia. Tolerance | Pkg. Qty. | Pkg. | |
Inch | ||||
|---|---|---|---|---|
| 9/16" | -0.001" to 0.001" | 50 | 0000000 | 000000 |
Moisture-Resistant Polyethylene (HDPE) Balls
- Color: Semi-Clear White
- Temperature Range: Not Rated
- Tensile Strength: 3,920-4,200 psi (Poor)
- Impact Strength: 1.1-1.94 ft.-lbs./in. (Poor)
- Hardness: Rockwell R40-R80 (Medium)
- For Use Outdoors: No
Often used in check valves, relief valves, and float valves, these balls won’t swell when exposed to water. HDPE offers good chemical resistance.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Pkg. Qty. | Pkg. | |
| 9/16" | -0.002" to 0.002" | 25 | 0000000 | 00000 |
Fracture-Resistant Silicon-Nitride Ceramic
- Color: Black
- Max. Temperature: 1470° F
- Porosity: 0%
- Compressive Strength: 550,000 psi
Often used to create bearings, silicon-nitride ceramic is harder than many types of bearing steel but is lightweight and can be easily polished. It also withstands high temperatures.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Sphericity | Pkg. Qty. | Pkg. | |
| 9/16" | -0.00004" to 0.00005" | 99.9995% | 1 | 0000000 | 000000 |
Fracture- and Thermally Shock-Resistant Silicon-Nitride Ceramic Balls
- Color: Black
- Max. Temperature: 1470° F
- Porosity: 0%
- Compressive Strength: 550,000 psi
Often used to create bearings, silicon-nitride ceramic is harder than many types of bearing steel but is lightweight and can be easily polished. It also withstands high temperatures.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Sphericity | Pkg. Qty. | Pkg. | |
| 9/16" | -0.00004" to 0.00005" | 99.9995% | 1 | 0000000 | 000000 |