1304K NACHI 20x52x15mm Calculation factor (Y1) 2.12 Self aligning ball bearings
| Bearing number | 1304K |
| 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 |
| r1 min. | 1.1 mm |
| da min. | 26.5 mm |
| Da max. | 45.5 mm |
| ra max. | 1.0 mm |
| Weight | 0.163 Kg |
| Basic dynamic load rating (C) | 12.4 kN |
| Basic static load rating (C0) | 3.3 kN |
| (Grease) Lubrication Speed | 12000 r/min |
| (Oil) Lubrication Speed | 15000 r/min |
| Calculation factor (e) | 0.30 |
| Calculation factor (Y0) | 2.22 |
| Calculation factor (Y1) | 2.12 |
Detailed Parameters
parameter：
| 560/552A Tapered roller bearings | Width :38.1mm ，d:66.675 mm ，Brand:ISO ，Size :66.675x123.825x38.1mm ，Outer Diameter :123.825mm ，Bore Diameter :66.675mm |
| SA 25 Plain bearings | A:60 mm ，B:31 mm ，d:25 mm ，Brand:CX ，Bore Diameter :25mm ，B1:22 mm |
| NU10/560-M1 Cylindrical roller bearings | Outer Diameter :820mm ，Brand:FAG ，Bore Diameter :560mm ，d:560 mm |
| 5S-2LA-HSE913G/GNP42 Angular contact ball bearings | d:65 mm ，Size :65x90x13mm ，Width :13mm ，Bore Diameter :65mm ，Outer Diameter :90mm ，Brand:NTN |
| K22X30X20FV Needle roller bearings | Ew:32 mm ，Outer Diameter :32mm ，Bore Diameter :22mm ，Brand:KOYO ，Fw:22 mm |
| TBR 25-UU AS Linear bearings | h:28 mm ，d:25 mm ，Thread (G1):M8 ，Bore Diameter :25mm ，e:11.5 mm ，Brand:NBS |
| F636 Deep groove ball bearings | Size :6x22x7mm ，Outer Diameter :22mm ，Bore Diameter :6mm ，Brand:ISO |
| 7326 A Angular contact ball bearings | Outer Diameter :280mm ，Brand:NSK ，Bore Diameter :130mm ，d:130 mm ，Size :130x280x58mm ，Width :58mm |
| K20X26X12BE Needle roller bearings | Brand:KOYO ，Bore Diameter :20mm ，Outer Diameter :26mm ，Fw:20 mm ，Bc:12 mm ，Ew:26 mm |
| 71912 ACE/HCP4AL Angular contact ball bearings | Brand:SKF ，Bore Diameter :85mm ，Width :13mm ，Size :85x60x13mm ，Outer Diameter :60mm ，d:60 mm |
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