2304 SIGMA 20x52x21mm D 52 mm Self aligning ball bearings
| Bearing number | 2304 |
| Size (mm) | 20x52x21 |
| Brand | SIGMA |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 21 |
| d | 20 mm |
| D | 52 mm |
| B | 21 mm |
| C | 21 mm |
Detailed Parameters
parameter：
| RNAF101710 Needle roller bearings | Fw:10 mm ，Width :10mm ，Outer Diameter :17mm ，Bore Diameter :10mm ，Size :10x17x10mm ，Brand:NSK |
| KB1029 Linear bearings | Outer Diameter :19mm ，Brand:NBS ，Bore Diameter :10mm ，d:10 mm |
| 2318SK Self aligning ball bearings | Y1:1.7 ，Associated sleeve reference:H2318X ，e:0.38 ，Y2:2.6 ，rs min:3 mm |
| 190KBE22 Tapered roller bearings | Width :160mm ，Bore Diameter :200mm ，d:200 mm ，Outer Diameter :340mm ，Brand:NACHI ，Size :200x340x160mm |
| DL 6 10 Needle roller bearings | Size :6x12x10mm ，Outer Diameter :12mm ，Brand:Timken ，Bore Diameter :6mm |
| NA6904 Needle roller bearings | Size :20x37x30mm ，Outer Diameter :37mm ，Bore Diameter :20mm ，Width :30mm ，Brand:KOYO |
| HK2220 Needle roller bearings | Bearing Type:Cage Retained Rollers ，Width :20mm ，Bore Diameter :22mm ，Brand:AST ，Size :22x28x20mm ，Outer Diameter :28mm |
| FL603 Deep groove ball bearings | Outer Diameter :10.5mm ，Bore Diameter :3mm ，Size :3x10.5x3mm ，Brand:NTN |
| 51434X Thrust ball bearings | Outer Diameter :340mm ，d:170 mm ，Brand:NSK ，Size :170x340x135mm ，Width :135mm ，Bore Diameter :170mm |
| 32226 J2 Tapered roller bearings | Size :230x130x67.75mm ，Brand:SKF ，Bore Diameter :230mm ，d:130 mm ，Outer Diameter :130mm ，Width :67.75mm |
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