Bearing Material - related Form
| Component | Material |
|---|---|
| Bearing rings and rolling elements | High - quality high - carbon chromium bearing steel (GCr15) |
| Cage | High - quality cold - rolled steel sheet (Grade 08 or 10), and reinforced engineering plastics if necessary |
| Dust cover | Imported special material (SPCC) or stainless steel (1Cr18Ni9 or 1Cr13) |
| Seal ring | High - quality steel sheet (Grade 08 or 10) after surface treatment and nitrile rubber (NBR) by hot pressing, and stainless steel (1Cr12Ni9) skeleton with oil - resistant and high - temperature - resistant special rubber if necessary |
Chemical Composition of High - carbon Chromium Bearing Form
| Steel Code | C | Si | Mn | Cr | Mo | P | S | Cu | Ni |
|---|---|---|---|---|---|---|---|---|---|
| Gcr15 | 0.95 - 1.05 | 0.15 - 0.35 | 0.25 - 0.45 | 1.40 - 1.65 | ≤0.10 | ≤0.025 | ≤0.25 | ≤0.25 | ≤0.3 |
Comparison of Gcr15 Bearing Steel with Standard Designations Form
| China | ISO | USA (ANSI) | Germany (DIN) | Japan (JIS) | Sweden (SKF) |
|---|---|---|---|---|---|
| Gcr15 | 693/XVII | 52100 | 100Cr6 | SUJ2 | SKF3 |
Precision Grade Comparison Form
| Standard Code | Precision Grades (from low to high) |
|---|---|
| GB | 0, 6, 5, 4 |
| ISO | 0, 6, 5, 4 |
| DIN | P0, P6, P5, P4 |
| JIS | 0, 6, 5, 4 |
| ANSI | ABEC1, ABEC3, ABEC5, ABEC7 |
