2304 KOYO 20x52x21mm Bearing No. 2304 Self aligning ball bearings


| Bearing number | 2304 |
| Size (mm) | 20x52x21 |
| Brand | KOYO |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 21 |
| d | 20 mm |
| D | 52 mm |
| B | 21 mm |
| C | 21 mm |
| r min. | 1.1 mm |
| da min. | 26.5 mm |
| Da max. | 45.5 mm |
| ra max. | 1 mm |
| Weight | 0.209 Kg |
| Basic dynamic load rating (C) | 18.0 kN |
| Basic static load rating (C0) | 4.70 kN |
| (Grease) Lubrication Speed | 11000 r/min |
| (Oil) Lubrication Speed | 15000 r/min |
| Calculation factor (e) | 0.49 |
| Calculation factor (Y0) | 1.35 |
| Calculation factor (Y1) | 1.29 |
| Bearing No. | 2304 |
| r(min) | 1.1 |
| Cr | 18.0 |
| C0r | 4.65 |
| Cu | 0.30 |
| Grease lub. | 11000 |
| Oil lub. | 15000 |
| da(min) | 26.5 |
| Da(max) | 45.5 |
| ra(max) | 1 |
| e | 0.49 |
| Y1 | 1.29 |
| Y2 | 2.00 |
| Y0 | 1.35 |
| (Refer.)Mass(kg) | 0.209 |
Detailed Parameters
parameter:
| HSB026C Angular contact ball bearings | Size :130x200x33mm ,Outer Diameter :200mm ,Brand:NTN ,Bore Diameter :130mm |
| NAP209 Bearing units | d:45 mm ,A:54 mm ,Brand:FYH ,Bore Diameter :45mm ,Width :54mm ,B1:56.3 mm |
| NCF30/530V Cylindrical roller bearings | Size :530x780x185mm ,Bore Diameter :530mm ,Brand:SKF ,Width :185mm ,d:530 mm ,Outer Diameter :780mm |
| KUX040 2RD Angular contact ball bearings | Outer Diameter :120.65mm ,Brand:KOYO ,Size :101.6x120.65x12.7mm ,Bore Diameter :101.6mm ,Width :12.7mm |
| SEA20 /NS 7CE3 Angular contact ball bearings | d:20 mm ,Brand:SNFA ,Bore Diameter :20mm ,Outer Diameter :32mm ,Width :7mm ,Size :20x32x7mm |
| B7021-C-2RSD-T-P4S Angular contact ball bearings | Bore Diameter :105mm ,Brand:FAG ,Width :26mm ,Outer Diameter :160mm ,Size :105x160x26mm |
| 6210F600 Deep groove ball bearings | d:50.000 mm ,Width :20.000mm ,Size :50x90x20mm ,Outer Diameter :90.000mm ,Brand:SNR ,Bore Diameter :50.000mm |
| 7015 ACB/P4AL Angular contact ball bearings | Size :115x75x20mm ,Width :20mm ,Brand:SKF ,Bore Diameter :115mm ,Outer Diameter :75mm |
| NKI 35/30 Cylindrical roller bearings | Outer Diameter :35mm ,Brand:SKF ,Bore Diameter :50mm ,Size :50x35x30mm |
| MJH-981 Needle roller bearings | Outer Diameter :20.638mm ,Size :14.288x20.638x12.7mm ,Brand:Timken ,Bore Diameter :14.288mm |
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