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Hard Wear-Resistant 52100 Alloy Steel Balls
- Yield Strength: 295,000 psi
- Hardness: Rockwell C60 (Very Hard)
- Fabrication: Cold Worked
- Specifications Met: See table
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.
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 | |||||
|---|---|---|---|---|---|
| 4" | -0.0005" to 0.0005" | Hardened | 1 | 00000000 | 0000000 |
Chemical-Resistant Slippery PTFE Balls
- Color: White
- Max. Temperature: 500° F
- Tensile Strength: See Table (Poor)
- Impact Strength: 3.5 ft.-lbs./in. (Good)
- Hardness: Durometer 50D-65D (Medium Soft)
- For Use Outdoors: Yes
Offering a nonstick, slippery surface, these PTFE balls are often used as bearings and in ball valves. They offer superior chemical resistance and perform well in extreme temperatures. These balls are also excellent electrical insulators.
| Dia. | Dia. Tolerance | Tensile Strength | Pkg.Qty. | Pkg. | |
| 4" | -0.005" to 0.005" | 3,000-5,000 psi | 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.
- Color: Black
- Temperature Range: -20° to 200° F
- Tensile Strength: 5,600 psi
- For Use Outdoors: Yes
| Dia. | Dia. Tolerance | Durometer | Each | |
| 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 | ||||||
|---|---|---|---|---|---|---|
| Dia. | Dia. Tolerance | Material | Dia. | Durometer | Each | |
| 4" | -0.020" to +0.020" | Steel | 3 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 meet NSF/ANSI 61 standards for safe use with drinking water.
Stainless steel floats have excellent corrosion resistance and are also for use with oil.
Cylindrical and rectangular floats are all self-tapping except those with a 4” diameter, which have a threaded hose connection.
| Dia. | Lg. | Thread Size | Thread Type | Max. Pressure | Temp. Range, °F | Color | For Container Type | Specifications Met | Each | |
| 4" | 6" | 1/4"-20 | UNC | Not Rated | 35° to 175° | Off-White | Open Tank | NSF/ANSI 61 | 0000000 | 00000 |
| Dia. | Lg. | Thread Size | Thread Type | Max. Pressure | Temp. Range, °F | Color | For Container Type | Specifications Met | Each | |
| 4" | 5" | 1/4"-20 | UNC | Not Rated | 35° to 175° | Off-White | Open Tank | NSF/ANSI 61 | 0000000 | 00000 |
Through-Hole Floats
The through-hole connection allows these floats to slide up and down a vertical float rod (not included). Use clamps (not included) to set them in a fixed position.
Stainless steel floats are more corrosion resistant than copper floats.
Floats without Connections
These floats are untethered by a float rod so they can float freely in your tank.
316 stainless steel floats are more corrosion resistant than 304 stainless steel floats.
| Dia. | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
304 Stainless Steel Ball Floats—For Use With Hydraulic Fluid, Oil, Water | ||||||
|---|---|---|---|---|---|---|
| 4" | 375 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
316 Stainless Steel Ball Floats—For Use With Hydraulic Fluid, Oil, Water | ||||||
| 4" | 375 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |