Rolling steel balls are intended for high-load mechanical applications, contact fatigue resistance and pressure lubrication. The AISI 52100 (100Cr6) steel is the world reference for precision ball bearings. The shades combined with chromium-manganese and chromium-molybdenum complete this family for penetration requirements of soaking, abrasive wear resistance or operating at slightly high temperatures.
Materials available in rolling steel
| Material | Standard USA | Hardness | Diameters |
|---|---|---|---|
| Low carbon steel AISI 1010/1015 cemented | 1010 | 55-65 HRC | 1.5 – 300 mm |
| Low Carbon Steel Bill AISI 1010/1015 soft | 1010 | 60-90 HRB | 1.5 – 300 mm |
| High Carbon Steel Bill AISI 1085 | 1085 | 59-66 HRC | 1.5 – 300 mm |
| Chrome steel AISI 52100 100Cr6 | 52100 | 60-66 HRC | 0.25 - 300 mm |
| AISI 52100 100Cr6 with very high precision-low noise | 52100 | 60-66 HRC | 1 – 16 mm |
| 100CrMn6 Chrome Steel Bill | – | 60-66 HRC | 45 – 300 mm |
| 100CrMo7-3 Chrome Steel Bill | K19965 | 57-65 HRC | 45 – 300 mm |
| 100CrMnMo8 Chrome Steel Bill | – | 55-63 HRC | 45 – 300 mm |
Applications of bearing steel balls
Ball and roller bearings, smooth bearings, ball screws, pumps, compressors, gearboxes, electrical appliances, measuring instruments.
