2304 NACHI 20x52x21mm Weight 0.209 Kg Self aligning ball bearings
| Bearing number | 2304 |
| Size (mm) | 20x52x21 |
| Brand | NACHI |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 21 |
| d | 20 mm |
| D | 52 mm |
| B | 21 mm |
| C | 21 mm |
| r1 min. | 1.1 mm |
| da min. | 26.5 mm |
| Da max. | 45.5 mm |
| ra max. | 1.0 mm |
| Weight | 0.209 Kg |
| Basic dynamic load rating (C) | 18 kN |
| Basic static load rating (C0) | 4.7 kN |
| (Grease) Lubrication Speed | 11000 r/min |
| (Oil) Lubrication Speed | 14000 r/min |
| Calculation factor (e) | 0.49 |
| Calculation factor (Y0) | 1.35 |
| Calculation factor (Y1) | 1.29 |
Detailed Parameters
parameter：
| 71964 ACDMA/P4A Angular contact ball bearings | Brand:SKF ，Size :440x320x56mm ，Outer Diameter :320mm ，Bore Diameter :440mm ，Width :56mm |
| 543085/543114 Tapered roller bearings | Width :31.75mm ，Bore Diameter :215.9mm ，Brand:NTN ，Size :215.9x290.01x31.75mm ，Outer Diameter :290.01mm ，d:215.9 mm |
| HR32005XJ Tapered roller bearings | Outer Diameter :47mm ，Bore Diameter :25mm ，Width :15mm ，Size :25x47x15mm ，Brand:NSK |
| 4203 ATN9 Deep groove ball bearings | Brand:SKF ，Bore Diameter :40mm ，Size :40x17x16mm ，Width :16mm ，Outer Diameter :17mm ，d:17 mm |
| 05075/05185 Tapered roller bearings | Size :x47x14.381mm ，Width :14.381mm ，Outer Diameter :47.000mm ，Brand:NACHI |
| NJ 311 Cylindrical roller bearings | Outer Diameter :120mm ，Size :55x120x29mm ，Bore Diameter :55mm ，Brand:SIGMA |
| UCF206 Bearing units | d:30 mm ，Z:40.2 mm ，Bore Diameter :30mm ，A:108 mm ，Brand:CX ，Width :38.1mm |
| 7014CDB/GNP5 Angular contact ball bearings | Outer Diameter :110mm ，Size :70x110x40mm ，Bore Diameter :70mm ，Width :40mm ，Brand:NTN |
| UCC209-26 Bearing units | Brand:FYH ，Width :49.2mm ，d:41.275 mm ，Bore Diameter :41.275mm |
| SCE1010-PP Needle roller bearings | Size :15.875x20.638x15.875mm ，Bore Diameter :15.875mm ，Outer Diameter :20.638mm ，Brand:INA ，Width :15.875mm |
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