System of Measurement System of Measurement |
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Diameter Diameter | Show |
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Diameter Diameter | Hide |
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Material Material |
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Hardness Rating Hardness Rating |
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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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Maximum Temperature Maximum Temperature |
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Yield Strength Yield Strength |
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Tolerance Rating Tolerance Rating |
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For Use Outdoors For Use Outdoors |
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Appearance Appearance |
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Elongation Elongation |
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Certificate Certificate |
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Fabrication Fabrication |
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Hardness Hardness |
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Heat Treatment Heat Treatment |
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Durometer Durometer |
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Tensile Strength Tensile Strength |
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Connection Type Connection Type |
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 | Hose |
About Rubber
More
About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
More
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 | |||||
|---|---|---|---|---|---|
| 2 3/4" | -0.0002" to 0.0002" | Hardened | 1 | 0000000 | 0000000 |
Abrasion-Resistant Polyurethane Rubber Balls
Use these polyurethane balls as seals in pumps and check valves or let them bounce inside of vibrating sifters for an effective screen cleaner. They are made of polyurethane, which combines the shock absorbing qualities of rubber with the strength of plastic.
Balls with a steel core are heavier than standard balls, so they’re often used to offset buoyancy or to reach a specific weight.
For technical drawings and 3-D models, click on a part number.
- Color: Black
- Temperature Range: -20° to 200° F
- Tensile Strength: 5,600 psi
- For Use Outdoors: Yes
| Dia. | Dia. Tolerance | Durometer | Each | |
| 2 3/4" | -0.020" to +0.020" | 95A (Extra Hard) | 0000000 | 000000 |
- Color: Black
- Temperature Range: -20° to 200° F
- Tensile Strength: 5,600 psi
- For Use Outdoors: Yes
Core | ||||||
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| Dia. | Dia. Tolerance | Material | Dia. | Durometer | Each | |
| 2 3/4" | -0.020" to +0.020" | Steel | 2 1/2" | 95A (Extra Hard) | 0000000 | 000000 |
Floats for Threaded Rods
Connect these floats to threaded float rods (not included). Use them to replace an existing float or combine with rods and float valve bodies (not included) to build a float valve.
Polypropylene floats are lightweight and have good corrosion resistance for use with water.
Stainless steel floats have excellent corrosion resistance and are for use with water and oil.
Cylindrical and rectangular floats are self-tapping, except 4" dia. float has a threaded hose connection.
| Dia. | Thread Size | Thread Type | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 2 3/4" | 1/4"-20 | UNC | 250 | -30° to 225° | 26 ga. | Open Tank, Closed Tank | 0000000 | 000000 |