21304EK NACHI 20x52x15mm C 15 mm Cylindrical roller bearings
| Bearing number | 21304EK |
| Size (mm) | 20x52x15 |
| Brand | NACHI |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 15 |
| d | 20 mm |
| D | 52 mm |
| B | 15 mm |
| C | 15 mm |
| r min. | 1.1 mm |
| Weight | 0.18 Kg |
| Basic dynamic load rating (C) | 47 kN |
| Basic static load rating (C0) | 33.5 kN |
| (Grease) Lubrication Speed | 11000 r/min |
| (Oil) Lubrication Speed | 14000 r/min |
| Calculation factor (e) | 0.31 |
| Calculation factor (Y0) | 2.15 |
| Calculation factor (Y1) | 2.2 |
Detailed Parameters
parameter：
| 60RIN248 Cylindrical roller bearings | d:152.4 mm ，D:266.7 mm ，Bore Diameter :152.4mm ，Outer Diameter :246mm ，Brand:Timken ，F:173 mm |
| CX187 Wheel bearings | Designation SKF:VKBA 1344 ，Designation Ruville:6910 ，Designation FAG:713618270 ，Brand:CX |
| 696A-2RS Deep groove ball bearings | Width :5mm ，Size :6x16x5mm ，d:6 mm ，Brand:ZEN ，Bore Diameter :6mm ，Outer Diameter :16mm |
| 693/1BZ Deep groove ball bearings | Bore Diameter :3mm ，Width :2.6mm ，d:3 mm ，Size :3x8x2.6mm ，Outer Diameter :8mm ，Brand:KOYO |
| HMK1725B Needle roller bearings | Width :25mm ，Fw:17 mm ，Outer Diameter :24mm ，Size :17x24x25mm ，Brand:NTN ，Bore Diameter :17mm |
| R40/30 Needle roller bearings | Size :40x45x30mm ，Bore Diameter :40mm ，Outer Diameter :45mm ，Brand:KOYO ，Width :30mm |
| VKBA 3319 Wheel bearings | Designation Ruville:6850 ，Designation FAG:713613160 ，Brand:SKF ，Designation SNR:R168.50 ，Designation SX:CX386 |
| ASTT90 2015 Plain bearings | Bearing Type:straight ，Shaft Dia., Nominal (d):20.0000 ，Bore Diameter :20mm ，Brand:AST ，Outer Diameter :23mm |
| HCB7012-E-2RSD-T-P4S Angular contact ball bearings | Size :60x95x18mm ，Brand:FAG ，Outer Diameter :95mm ，Bore Diameter :60mm |
| NUP1019 Cylindrical roller bearings | Outer Diameter :145mm ，Size :95x145x24mm ，Brand:KOYO ，Bore Diameter :95mm |
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