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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Durometer Durometer |
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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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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Appearance Appearance |
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Tensile Strength Tensile Strength |
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For Use Outdoors For Use Outdoors |
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Certificate Certificate |
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Elongation Elongation |
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Fabrication Fabrication |
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Hardness Hardness |
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Heat Treatment Heat Treatment |
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Tolerance Rating Tolerance Rating |
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Yield Strength Yield Strength |
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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 ORDER HISTORY 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.
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 |
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. All are for use with water.
Polypropylene floats are lightweight and have good corrosion resistance.
Stainless steel floats have excellent corrosion resistance and are also for use with oil.
Cylindrical and rectangular floats are self-tapping, except 4" dia. floats have 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 |


























