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.
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 | |||||
---|---|---|---|---|---|
1 3/16" | -0.0005" to 0.0005" | Magnetic | 1 | 0000000 | 000000 |
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 | |||||
---|---|---|---|---|---|
1 3/16" | -0.0001" to 0.0001" | Hardened | 1 | 0000000 | 00000 |
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 of these balls is held to a precise tolerance. They’re made from 52100 alloy steel, also known as chrome steel, which has high levels of carbon and chromium to make them extremely hard and resistant to wear. Often used as bearings, these balls are also hardened to increase their abrasion and impact resistance. They’re manufactured to ASTM A295 standards for quality and performance.
Dia. | Dia. Tolerance | Heat Treatment | Mechanical Finish | Pkg. Qty. | Pkg. | |
Mirror-Like | ||||||
---|---|---|---|---|---|---|
1 3/16" | -0.00005" to 0.00005" | Hardened | Ground and Polished | 1 | 00000000 | 000000 |
Flange-Mount Ball Transfers

Steel balls are durable.
Flange | Mounting Hole | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Ball Dia. | Cap., lbs. | Ht. | Dia. | Working Orientation | Lg. | Wd. | No.of Mounting Holes | Dia. | Ctr.-to-Ctr. | Each | ||
Steel Ball | ||||||||||||
Zinc-Plated Steel Housing | ||||||||||||
C | 1" | 110 | 1 13/32" | 1 3/16" | Ball Up | 2 17/32" | 1 23/32" | 2 | 7/32" | 1 7/8" | 00000000 | 000000 |
Recessed Flange-Mount Ball Transfers

Transfers recess into the mounting surface for a low profile. These ball transfers can be used in an angled working orientation to form support stands.
Steel balls are durable. Stainless steel balls offer the most corrosion resistance. They don’t need to be lubricated.
Capacity is given for the ball up orientation. Using these ball transfers in a ball down or angled orientation could reduce the capacity stated.
For technical drawings and 3-D models, click on a part number.
Flange | Mounting Hole | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Ball Dia. | Cap., lbs. | Ht. | Dp. | Dia. | Working Orientation | Dia. | No.of Mounting Holes | Dia. | Ctr.-to-Ctr. | Each | ||
Steel Ball | ||||||||||||
Zinc-Plated Steel Housing | ||||||||||||
B | 3/4" | 55 | 13/32" | 15/32" | 1 3/16" | Ball Up, Ball Down, Angle | 2 13/32" | 2 | 7/32" | 1 3/4" | 0000000 | 00000 |
Stainless Steel Ball | ||||||||||||
Stainless Steel Housing | ||||||||||||
B | 3/4" | 55 | 13/32" | 15/32" | 1 3/16" | Ball Up, Ball Down, Angle | 2 13/32" | 2 | 7/32" | 1 3/4" | 0000000 | 00000 |