2304 NSK r 1.1 20x52x21mm Self aligning ball bearings
| Bearing number | 2304 |
| Size (mm) | 20x52x21 |
| Brand | NSK |
| 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 | 0.193 Kg |
| Basic dynamic load rating (C) | 18.5 kN |
| Basic static load rating (C0) | 4.7 kN |
| (Grease) Lubrication Speed | 11 000 r/min |
| (Oil) Lubrication Speed | 14 000 r/min |
| Calculation factor (e) | 0.5 |
| Calculation factor (Y0) | 1.3 |
| Calculation factor (Y2) | 1.9 |
| SRI | 4.58 |
| Y3 | 1.2 |
| hidYobi | 2304 |
| LangID | 1 |
| PCD | 35.1 |
| D_ | 52 |
| Y2 | 1.9 |
| SREX | 0 |
| cyl count | 11 |
| B_ | 21 |
| CAD | http://service.web2cad.co.jp/pcom/?Maker=NSK_RB&info=nsk_rb/roller_bearings/self_aliging_bb/cylindrical_bore_asmtab.prj&varset={STAN=-}.{ORDER=2304}.{SD=20}.{D=52}.{B=21}.{R=1.1}.{CR1=18500}.{COR1=4700}.{CR2=1880}.{COR2=480}.{LG=11000}.{LO=14000}.{DA1=26.5}.{DA2=45.5}.{RA=1.0}.{E=0.50}.{Y2=1.9}.{Y3=1.20}.{Y0=1.30}.{MASS=0.193} |
| hidTable | ecat_NSSAB |
| Oil rpm | 14000 |
| SRE | 0 |
| Y0 | 1.3 |
| mass | 0.193 |
| ra | 1 |
| GRS rpm | 11000 |
| SRIX | 0.04 |
| groove inner | 26.347 |
| D_a | 45.5 |
| SRIN | 0 |
| C0 | 4.7 |
| groove outer | 45.761 |
| SREN | 0 |
| X0 | 1 |
| Prod_Type3 | SABB_SA_CB |
| X1 | 1 |
| da | 26.5 |
| X2 | 0.65 |
| e | 0.5 |
| yobi | 2304 |
| r | 1.1 |
| KBRG | 1354 |
| CAng | 18.582 |
| cyl dia | 8.731 |
| calcUrl | /BearingGuide/html/calculation.jsp |
Detailed Parameters
parameter：
| NN3088-AS-K-M-SP Cylindrical roller bearings | Width :157mm ，Bore Diameter :440mm ，d:440 mm ，Outer Diameter :650mm ，Size :440x650x157mm ，Brand:INA |
| GK 12 DO Plain bearings | Bore Diameter :12mm ，Outer Diameter :22mm ，Size :12x22x10mm ，Brand:INA |
| HI-CAP ST2047 BLFT Tapered roller bearings | Width :14.8mm ，Outer Diameter :47mm ，Bore Diameter :20mm ，Size :20x47x14.8mm ，Brand:KOYO ，d:20 mm |
| 7202BDB Angular contact ball bearings | Brand:NACHI ，Bore Diameter :15mm ，Width :11mm ，Size :15x35x11mm ，Outer Diameter :35mm |
| 7218UCG/GNP42 Angular contact ball bearings | Outer Diameter :160mm ，Size :90x160x30mm ，Bore Diameter :90mm ，Brand:NTN |
| 32314BF Tapered roller bearings | Brand:Fersa ，Bore Diameter :70mm ，Width :54mm ，Size :70x150x54mm ，Outer Diameter :150mm |
| RNA3075 Needle roller bearings | Outer Diameter :120mm ，Brand:KOYO ，Bore Diameter :96mm ，Width :38mm ，Size :96x120x38mm |
| NF338 Cylindrical roller bearings | Bore Diameter :190mm ，Outer Diameter :400mm ，Brand:KOYO ，d:190 mm ，Width :78mm ，Size :190x400x78mm |
| NUP 224 Cylindrical roller bearings | Size :120x215x40mm ，Bore Diameter :120mm ，Brand:ISB ，Width :40mm ，Outer Diameter :215mm ，d:120 mm |
| 6413 Deep groove ball bearings | Outer Diameter :160mm ，Width :37mm ，Size :65x160x37mm ，Brand:ISB ，Bore Diameter :65mm |
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