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KOYO Thrust ball bearings
| Bearing Model | Series | Direction | Bore d (mm) | Outer Dia D (mm) | Thickness T (mm) | r(min) (mm) | Basic Dynamic Axial Load Ca (kN) | Basic Static Axial Load C0a (kN) | Fatigue Load Limit Cu (kN) | Grease Speed (min⁻¹) | Oil Speed (min⁻¹) | Mass (kg) | Key Features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 51105 | 511 (Light) | Single | 25 | 42 | 11 | 0.6 | 17.8 | 32.5 | 3.2 | 4300 | 5600 | 0.07 | Light, compact, low axial load |
| 51205 | 512 (Medium) | Single | 25 | 47 | 15 | 0.6 | 27.8 | 50.4 | 5.0 | 3600 | 5500 | 0.12 | Medium load, general-purpose |
| 51305 | 513 (Heavy) | Single | 25 | 52 | 18 | 0.6 | 35.7 | 61.4 | 6.1 | 3100 | 4800 | 0.18 | Heavy axial load capacity |
| 51405 | 514 (Extra-Heavy) | Single | 25 | 60 | 24 | 1 | 50.2 | 88.0 | 8.8 | 2400 | 3800 | 0.29 | Ultra-heavy axial load |
| 52205 | 522 | Double | 25 | 47 | 28 | 0.6 | 27.8 | 50.4 | 5.0 | 3200 | 4800 | 0.22 | Double-direction, medium load |
| 52305 | 523 | Double | 25 | 52 | 34 | 0.6 | 35.7 | 61.4 | 6.1 | 2800 | 4300 | 0.32 | Double-direction, heavy load |
| 53205U | 532U | Single | 25 | 47 | 15 | 0.6 | 27.8 | 50.4 | 5.0 | 3400 | 5200 | 0.13 | Self-aligning (2°), spherical seat |
| 54208U | 542U | Double | 40 | 68 | 36 | 1 | 63.5 | 122 | 12.2 | 2200 | 3400 | 0.55 | Double-direction, self-aligning |
| 51214 | 512 | Single | 70 | 105 | 27 | 1 | 86.5 | 175 | 17.5 | 2000 | 3200 | 0.75 | Large bore, medium load |
| 51320 | 513 | Single | 100 | 170 | 55 | 1.5 | 225 | 450 | 45 | 1300 | 2000 | 3.2 | Extra-large, heavy load |
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