13889/13830 KOYO 38.1×63.5×12.7mm Basic static load rating (C0) 33.1 kN Tapered roller bearings
| Bearing number | 13889/13830 |
| Size (mm) | 38.1×63.5×12.7 |
| Brand | KOYO |
| Bore Diameter (mm) | 38.1 |
| Outer Diameter (mm) | 63.5 |
| Width (mm) | 12.7 |
| d | 38.1 mm |
| D | 63.5 mm |
| T | 12.7 mm |
| B | 11.908 mm |
| C | 9.525 mm |
| a | 11.9 mm |
| r min. | 1.6 mm |
| r2 min. | 0.8 mm |
| da min. | 45 mm |
| Da | 59 mm |
| db min | 42.5 mm |
| ra max. | 1.6 mm |
| rb max. | 0.8 mm |
| Db | 60 mm |
| Weight | 0.149 Kg |
| Basic dynamic load rating (C) | 25.5 kN |
| Basic static load rating (C0) | 33.1 kN |
| (Grease) Lubrication Speed | 5800 r/min |
| (Oil) Lubrication Speed | 7700 r/min |
| Calculation factor (e) | 0.35 |
| Calculation factor (Y0) | 0.95 |
Detailed Parameters
parameter：
| 2473/2420 Tapered roller bearings | Outer Diameter :68.262mm ，Brand:KOYO ，r2 min.:1.6 mm ，db min:33.5 mm ，D:68.262 mm ，da min.:34.5 mm |
| 7019 CB/HCP4A Angular contact ball bearings | Width :24mm ，Brand:SKF ，d:95 mm ，Outer Diameter :95mm ，Bore Diameter :145mm ，Size :145x95x24mm |
| 5306ZZ Angular contact ball bearings | Outer Diameter :72mm ，Size :30x72x30.2mm ，Brand:CYSD ，Bore Diameter :30mm ，Width :30.2mm |
| 3778/3720 Tapered roller bearings | Width :30.162mm ，Size :47.625x93.264x30.162mm ，d:47.625 mm ，Brand:ISO ，Outer Diameter :93.264mm ，Bore Diameter :47.625mm |
| QJ 1060 MA Angular contact ball bearings | Brand:SKF ，Bore Diameter :460mm ，Size :460x300x74mm ，Outer Diameter :300mm ，Width :74mm |
| R10-2RS Deep groove ball bearings | Size :15.875x34.925x8.733mm ，Width :8.733mm ，Bore Diameter :15.875mm ，d:15.875 mm ，Outer Diameter :34.925mm ，Brand:ZEN |
| 7321DF Angular contact ball bearings | Size :105x225x49mm ，Brand:NACHI ，Outer Diameter :225mm ，Bore Diameter :105mm |
| UCF214 Bearing units | A1:22 mm ，A0:75.4 mm ，Brand:KOYO ，A:54 mm ，Bore Diameter :70mm ，d:70 mm |
| 6005/HR11QN Deep groove ball bearings | Size :25x47x12mm ，Brand:SKF ，Width :12mm ，Bore Diameter :25mm ，d:25 mm ，Outer Diameter :47mm |
| 20206 Spherical roller bearings | Width :16mm ，Outer Diameter :62mm ，Size :30x62x16mm ，Brand:SIGMA ，Bore Diameter :30mm |
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