31BTM3918A KOYO (Grease) Lubrication Speed 7200 r/min 31x39x17.8mm Needle roller bearings
| Bearing number | 31BTM3918A |
| Size (mm) | 31x39x17.8 |
| Brand | KOYO |
| Bore Diameter (mm) | 31 |
| Outer Diameter (mm) | 39 |
| Width (mm) | 17.8 |
| Fw | 31 mm |
| D | 39 mm |
| C | 17.8 mm |
| Weight | 0.039 Kg |
| Basic dynamic load rating (C) | 20.6 kN |
| Basic static load rating (C0) | 34.6 kN |
| (Grease) Lubrication Speed | 7200 r/min |
Detailed Parameters
parameter：
| 430224XU Tapered roller bearings | Bore Diameter :120mm ，Outer Diameter :215mm ，Size :120x215x97mm ，Brand:NTN |
| F695 Deep groove ball bearings | Size :5x13x4mm ，Width :4mm ，Bore Diameter :5mm ，Outer Diameter :13mm ，Brand:ISB |
| NNU 40/1000 M/W33 Cylindrical roller bearings | Brand:ISB ，Size :1000x1420x412mm ，Bore Diameter :1000mm ，Outer Diameter :1420mm ，Width :412mm |
| NU 406 Cylindrical roller bearings | Width :23mm ，Bore Diameter :30mm ，Brand:ISB ，Outer Diameter :90mm ，Size :30x90x23mm |
| 21313 Spherical roller bearings | Brand:NTN ，Outer Diameter :140mm ，d:65 mm ，Bore Diameter :65mm ，Size :65x140x33mm ，Width :33mm |
| 3200 Angular contact ball bearings | Size :10x30x14mm ，Outer Diameter :30mm ，Width :14mm ，Brand:ZEN ，Bore Diameter :10mm |
| HK1614-RS Needle roller bearings | Size :16x22x14mm ，Brand:INA ，Bore Diameter :16mm ，Fw:16 mm ，Outer Diameter :22mm ，Width :14mm |
| EGB1825-E40-B Plain bearings | Brand:INA ，Bore Diameter :18mm ，Size :18x20x25mm ，Outer Diameter :20mm |
| BCE910 Needle roller bearings | Size :14.288x19.05x15.875mm ，Brand:INA ，Bore Diameter :14.288mm ，Outer Diameter :19.05mm |
| 22380 EKW33+AOH3280 Spherical roller bearings | Bore Diameter :380mm ，Brand:ISB ，Size :380x820x243mm ，Outer Diameter :820mm ，Width :243mm |
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