21304E NACHI 20x52x15mm (Oil) Lubrication Speed 14000 r/min Cylindrical roller bearings
| Bearing number | 21304E |
| Size (mm) | 20x52x15 |
| Brand | NACHI |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 15 |
| d | 20 mm |
| D | 52 mm |
| B | 15 mm |
| C | 15 mm |
| r min. | 1.1 mm |
| Weight | 0.18 Kg |
| Basic dynamic load rating (C) | 47 kN |
| Basic static load rating (C0) | 33.5 kN |
| (Grease) Lubrication Speed | 11000 r/min |
| (Oil) Lubrication Speed | 14000 r/min |
| Calculation factor (e) | 0.31 |
| Calculation factor (Y0) | 2.15 |
| Calculation factor (Y1) | 2.2 |
Detailed Parameters
parameter：
| NAPK205 Bearing units | H:33.3 mm ，Brand:FYH ，d:25 mm ，Bore Diameter :25mm |
| 6011 N Deep groove ball bearings | Brand:ISB ，Outer Diameter :90mm ，Bore Diameter :55mm ，Size :55x90x18mm |
| F15109 Tapered roller bearings | Bore Diameter :39.688mm ，Brand:Fersa ，Outer Diameter :80.167mm ，Size :39.688x80.167x29.37mm |
| 53207 Thrust ball bearings | Outer Diameter :62mm ，Brand:ISO ，Bore Diameter :35mm ，d1:37 mm ，d:35 mm |
| 52408 Thrust ball bearings | Size :40x90x65mm ，Bore Diameter :40mm ，Brand:NSK ，Outer Diameter :90mm |
| UKFS312H Bearing units | A4:42 mm ，Brand:SNR ，d:55 mm ，H3:160 mm ，Bore Diameter :55mm |
| HB45 /S/NS 7CE3 Angular contact ball bearings | Brand:SNFA ，Outer Diameter :68mm ，d:45 mm ，Width :12mm ，Bore Diameter :45mm ，Size :45x68x12mm |
| JLM67042/LM67010 Tapered roller bearings | Brand:Timken ，Size :27x59.131x15.88mm ，Bore Diameter :27mm ，Outer Diameter :59.131mm ，Width :15.88mm |
| 458/453A Tapered roller bearings | d:44.45 mm ，Bore Diameter :44.45mm ，Width :29.317mm ，Brand:KOYO ，T:27.783 mm |
| GE70-KRR-B Deep groove ball bearings | Size :70x125x66mm ，Brand:INA ，Outer Diameter :125mm ，Bore Diameter :70mm |
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