2304TN9 SKF 20x52x21mm C 21 mm Self aligning ball bearings
| Bearing number | 2304TN9 |
| Size (mm) | 20x52x21 |
| Brand | SKF |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 21 |
| d | 20 mm |
| D | 52 mm |
| B | 21 mm |
| C | 21 mm |
| d2 | 28.8 mm |
| r1 min. | 1.1 mm |
| r2 min. | 1.1 mm |
| D1 | 43.7 mm |
| da min. | 27 mm |
| Da max. | 45 mm |
| ra max. | 1.1 mm |
| Weight | 0.22 Kg |
| Basic dynamic load rating (C) | 18.2 kN |
| Basic static load rating (C0) | 4.75 kN |
| Fatigue load limit (Pu) | 0.24 |
| Reference speed | 26000 r/min |
| Limiting speed | 19000 r/min |
| Calculation factor (e) | 0.52 |
| Calculation factor (kr) | 0.05 |
| Calculation factor (Y0) | 1.3 |
| Calculation factor (Y1) | 1.2 |
Detailed Parameters
parameter：
| NK16/16 Needle roller bearings | Size :16x24x16mm ，Outer Diameter :24mm ，Width :16mm ，Bore Diameter :16mm ，Brand:FBJ |
| 6014Z Deep groove ball bearings | Width :20mm ，Brand:KOYO ，Outer Diameter :110mm ，d:70 mm ，Bore Diameter :70mm ，Size :70x110x20mm |
| SM7005CP5 Angular contact ball bearings | Brand:KBC ，Width :12mm ，Outer Diameter :47mm ，Bore Diameter :25mm ，Size :25x47x12mm |
| KBO50-PP-AS Linear bearings | Fw:50 mm ，Brand:INA ，D:75 mm ，Bore Diameter :50mm ，Outer Diameter :75mm |
| 16005 Deep groove ball bearings | Bore Diameter :25mm ，Width :8mm ，Brand:KOYO ，Size :25x47x8mm ，Outer Diameter :47mm ，d:25 mm |
| 23234-K-MB-W33+AH2334-X Spherical roller bearings | Brand:NKE ，Outer Diameter :310mm ，Bore Diameter :170mm ，Size :170x310x110mm ，Width :110mm |
| ASTT90 1810 Plain bearings | Bore Diameter :18mm ，Bearing Type:straight ，Outer Diameter :20mm ，Shaft Dia., Nominal (d):18.0000 ，Shaft Size (ds) - 18 -0.050 / -0.068:18 0.050 / 0.068 ，Brand:AST |
| RNA 6907U Needle roller bearings | Width :20mm ，Brand:IKO ，Size :42x55x20mm ，Outer Diameter :55mm ，Fw:42 mm ，Bore Diameter :42mm |
| 32016*2 Tapered roller bearings | Width :29mm ，Outer Diameter :125mm ，Bore Diameter :80mm ，Size :80x125x29mm ，Brand:CYSD |
| RNN5610 Cylindrical roller bearings | Width :300.000mm ，Outer Diameter :560.000mm ，d:280.000 mm ，Size :280x560x300mm ，Bore Diameter :280.000mm ，Brand:NTN |
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