Material | Harsh environments, aerospace, medical | Carbon Steel (ISO 50) | Stainless Steel (ASTM A276) ▲ | 316 Stainless Steel (ASTM F138) ▲▲ |
| | Basic corrosion resistance | Enhanced durability and rust protection | Superior corrosion resistance for extreme conditions |
| | (e.g., 1000-hour salt spray test) | (2000-hour salt spray test) | (3000-hour salt spray test) |
Precision Rating | High-speed machinery, robotics | ABEC-1 (ANSI/ABMA 12) | P5 (ISO 492 P5) ▲ | P6 (ISO 492 P6) ▲▲ |
| | Standard tolerance for basic loads | 50% tighter tolerances for precision | 80% tighter tolerances for critical applications |
| | (±0.0003 in radial runout) | (±0.00015 in radial runout) | (±0.00008 in radial runout) |
Sealing Type | Dusty workshops, automotive | Open (no seal) | Metal Seal (ISO 15243) ▲ | 2RS Rubber Seal (ISO 14607) ▲▲ |
| | Unprotected against contaminants | Dust/water resistance | Full dust/water sealing and chemical resistance |
| | (suitable for clean environments) | (IP54 protection) | (IP67 protection) |
Load Capacity | Heavy industrial equipment | Light Load (ISO 15: 100 N) | Moderate Load (ISO 15: 200 N) ▲ | Heavy Load (ISO 15: 300 N) ▲▲ |
| | Handles basic rotational stress | Supports medium mechanical stress | Withstands high radial/thrust loads |
| | (e.g., toy motors) | (e.g., small pumps) | (e.g., industrial turbines) |
Speed | High-speed tools, turbines | 3000 RPM (ABMA) | 5000 RPM (ABMA) ▲ | 7000 RPM (ABMA) ▲▲ |
| | Standard for low-speed applications | 66% faster rotation | 133% faster rotation |
| | (e.g., manual drills) | (e.g., power tools) | (e.g., jet engines) |
Corrosion Resistance | Marine, chemical plants | Uncoated (ASTM A228) | Passivated Stainless (ASTM A967) ▲ | Electroplated (ASTM B695) ▲▲ |
| | Prone to rust in wet environments | 50% better rust resistance | 90% better rust resistance |
| | (e.g., 24-hour salt spray failure) | (e.g., 72-hour salt spray resistance) | (e.g., 168-hour salt spray resistance) |