B-2-1/2-4 Timken 3.97×7.142×6.35mm Bore Diameter 3.97mm Needle roller bearings
| C | 6.35 mm |
| Fw | 3.97 mm |
| D | 7.142 mm |
| Bearing number | B-2-1/2-4 |
| Size (mm) | 3.97×7.142×6.35 |
| Brand | Timken |
| Bore Diameter (mm) | 3.97 |
| Outer Diameter (mm) | 7.142 |
| Width (mm) | 6.35 |
| Weight | 0.001 Kg |
| Basic dynamic load rating (C) | 2 kN |
| Basic static load rating (C0) | 2 kN |
| (Grease) Lubrication Speed | 7000 r/min |
Detailed Parameters
parameter：
| SB206 Deep groove ball bearings | d:30 mm ，Bore Diameter :30mm ，Width :30mm ，Brand:CX ，Outer Diameter :62mm ，Size :30x62x30mm |
| W628/6-2RS1 Deep groove ball bearings | Bore Diameter :6mm ，Outer Diameter :13mm ，Width :5mm ，Size :6x13x5mm ，Brand:SKF |
| M282249/M282210 Tapered roller bearings | Outer Diameter :965.2mm ，Bore Diameter :682.625mm ，Size :682.625x965.2x185.738mm ，Brand:Timken |
| SY 50 TF Bearing units | d:50 mm ，Brand:SKF ，Bore Diameter :50mm ，A:54 mm ，s1:32.6 mm |
| 23130EMKW33 Thrust roller bearings | B:80 mm ，rs min:2.1 mm ，b:12.6 mm ，D1:222.4 mm ，k:6 mm ，Number of lubrication holes:3 |
| 697 Deep groove ball bearings | Outer Diameter :17mm ，Size :7x17x5mm ，Width :5mm ，Bore Diameter :7mm ，Brand:ISB |
| NN3080-AS-K-M-SP Cylindrical roller bearings | Bore Diameter :400mm ，Outer Diameter :600mm ，Size :400x600x148mm ，Width :148mm ，d:400 mm ，Brand:INA |
| 135TAD20 Thrust ball bearings | Bore Diameter :135mm ，Brand:NACHI ，Size :135x200x84mm ，Outer Diameter :200mm |
| 6005ZZE Deep groove ball bearings | Brand:NACHI ，Outer Diameter :47mm ，Bore Diameter :25mm ，Size :25x47x12mm |
| RNU 212 ECP Cylindrical roller bearings | Size :110x72x22mm ，Brand:SKF ，Width :22mm ，Outer Diameter :72mm ，Bore Diameter :110mm |
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