About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
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About Tool Steel
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About Plastic
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About Aluminum
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About Copper, Brass, and Bronze
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About Rubber
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Hardened Bearing-Quality 440C Stainless Steel
- Yield Strength: Not Rated
- Hardness: Rockwell C60 (Very Hard)
- Heat Treatment: Hardened
- Specifictions Met: See table
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 ORDER HISTORY after your order ships.
| Dia. | Dia. Tolerance | Magnetic Properties | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
|---|---|---|---|---|---|
| 7/16" | -0.0005" to 0.0005" | Magnetic | 25 | 0000000 | 000000 |
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
| Dia. | Dia. Tolerance | Magnetic Properties | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
|---|---|---|---|---|---|
| 7/16" | -0.0001" to 0.0001" | Magnetic | 10 | 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 ORDER HISTORY after your order ships.
- Yield Strength: Not Rated
- Hardness: Rockwell C25 (Hard)
- Heat Treatment: Not Rated
- Heat Treatable: No
- Specifications Met: Not Rated
| Dia. | Dia. Tolerance | Mechanical Finish | Appearance | Max. Temp., °F | Pkg. Qty. | Pkg. | |
316 Stainless Steel  | |||||||
|---|---|---|---|---|---|---|---|
Inch | |||||||
| 7/16" | -0.001" to 0.001" | Tumbled | Mirror-Like | 1500° | 10 | 00000000 | 000000 |
Tight-Tolerance Multipurpose 304 Stainless Steel
This material has tighter tolerances than standard 304 stainless steel. From cookware to chemical-processing equipment, 304 stainless steel is a good all-around choice for a wide range of applications. It maintains its corrosion resistance in temperatures up to 1500° F.
Balls have a reflective, mirror-like finish.
Steel that meets ASTM or SAE specifications complies with standards for materials.
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 C25 (Hard)
- Heat Treatable: No
| Dia. | Dia. Tolerance | Fabrication | Specifications Met | Pkg. Qty. | Pkg. | |
Mirror-Like | ||||||
|---|---|---|---|---|---|---|
| 7/16" | -0.0005" to 0.0005" | Cold Worked | ASTM A240, ISO 3290, SAE J405 | 25 | 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 | |||||
|---|---|---|---|---|---|
| 7/16" | -0.0001" to 0.0001" | Hardened | 100 | 0000000 | 000000 |
Tight-Tolerance Hard Wear-Resistant 52100 Alloy Steel Balls
- Yield Strength: 295,000 psi
- Hardness: Rockwell C60 (Very Hard)
- Specifications Met: ASTM A295
The diameter on these balls is held to a precise tolerance. 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.
| Dia. | Dia. Tolerance | Heat Treatment | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
|---|---|---|---|---|---|
| 7/16" | -0.00005" to 0.00005" | Hardened | 1 | 0000000 | 00000 |
Low-Carbon Steel Balls
- Yield Strength: 44,000 psi
- Hardness: Rockwell C60 (Very Hard)
Low-carbon steel offers 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 ORDER HISTORY after your order ships.
| Dia. | Dia. Tolerance | Heat Treatment | Mechanical Finish | Pkg. Qty. | Pkg. | |
Mirror-Like | ||||||
|---|---|---|---|---|---|---|
| 7/16" | -0.005" to 0.005" | Case Hardened | Tumbled | 100 | 00000000 | 00000 |
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. | |
| 7/16" | -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 | |||||
|---|---|---|---|---|---|
| 7/16" | -0.001" to 0.001" | Tumbled | 10 | 0000000 | 000000 |
Hollow Corrosion-Resistant 3003 Aluminum Balls
- Yield Strength: Not Rated
- Hardness: Not Rated
- Temper: O
- 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. | |
| 7/16" | -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 ORDER HISTORY after your order ships.
| Dia. | Dia. Tolerance | Mechanical Finish | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
|---|---|---|---|---|---|
| 7/16" | -0.001" to 0.001" | Ground and Polished | 50 | 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 | ||||
|---|---|---|---|---|
| 7/16" | -0.001" to 0.001" | 50 | 0000000 | 000000 |
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.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Pkg. Qty. | Pkg. | |
Inch | ||||
|---|---|---|---|---|
| 7/16 " | -0.002" to 0.002" | 100 | 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. | |
| 7/16" | -0.002" to 0.002" | 100 | 0000000 | 000000 |
Oil-Resistant Buna-N Rubber Balls
- Color: Black
- Temperature Range: -40° to 212° F
- Tensile Strength: 1,800 psi
- For Use Outdoors: No
Use these balls as seals in pumps and check valves or let them bounce inside of vibrating sifters for an effective screen cleaner. Buna-N is also known as nitrile, NBR, and acrylonitrile butadiene. It offers good resistance to petroleum-based oils.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Durometer | Specifications Met | Each | |
| 7/16" | -0.004" to +0.004" | 70A (Hard) | ASTM D2000 BF, ASTM D2000 BG | 0000000 | 00000 |
Chemical-Resistant Viton® Fluoroelastomer Rubber Balls
- Color: Black
- Temperature Range: 0° to 400° F
- Tensile Strength: 1,500 psi
- For Use Outdoors: Yes
Clean screens in vibrating sifters with the bounce of these balls, or use them as seals in pumps and check valves. Also known as FKM, Viton® fluoroelastomer is for use in harsh environments, such as those involving ethylene glycol and isopropyl alcohol.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Durometer | Specifications Met | Each | |
| 7/16" | -0.004" to +0.004" | 75A (Hard) | ASTM D2000 HK | 000000 | 00000 |
Weather-Resistant EPDM Rubber Balls
- Color: Black
- Temperature Range: -40° to 225° F
- Tensile Strength: 1,500 psi
- For Use Outdoors: Yes
Made of EPDM, these rubber balls won’t degrade from sunlight, ozone, or water. They can be used to clean screens inside vibrating sifters, dampen vibration inside assemblies, and seal pumps and check valves.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Durometer | Specifications Met | Each | |
| 7/16" | -0.005" to +0.005" | 70A (Hard) | ASTM D2000 DA | 0000000 | 00000 |