KBL1257 NBS D1 21 mm Linear bearings
| Bearing number | KBL1257 |
| Brand | NBS |
| Bore Diameter (mm) | 12 |
| Outer Diameter (mm) | 22 |
| d | 12 mm |
| D | 22 mm |
| D1 | 21 mm |
| L1 | 45.8 mm |
| W | 1.3 mm |
| L | 57 mm |
| Weight | 0.08 Kg |
| Basic dynamic load rating (C) | 0.657 kN |
Detailed Parameters
parameter：
| 24176-B-K30 Spherical roller bearings | Outer Diameter :620mm ，Bore Diameter :380mm ，Size :380x620x243mm ，Brand:FAG |
| 5200ZZ Angular contact ball bearings | Outer Diameter :30mm ，Brand:AST ，Width :14.287mm ，Size :10x30x14.287mm ，Bore Diameter :10mm |
| K47x52x17 Needle roller bearings | Size :47x52x17mm ，Brand:CX ，Outer Diameter :52mm ，Bore Diameter :47mm |
| HK4518RS Needle roller bearings | Size :45x52x18mm ，Brand:KOYO ，Bore Diameter :45mm ，Width :18mm ，Outer Diameter :52mm |
| 6944N Deep groove ball bearings | Bore Diameter :220mm ，Width :38mm ，Brand:CYSD ，Size :220x300x38mm ，Outer Diameter :300mm |
| ESFLZ207 Bearing units | d:35 mm ，e:17 mm ，H3:90 mm ，Bore Diameter :35mm ，A4:28.5 mm ，Brand:SNR |
| TSM15ED Tapered roller bearings | Brand:NACHI ，Width :52mm ，Outer Diameter :175mm ，Size :75x175x52mm ，Bore Diameter :75mm ，d:75 mm |
| 100FC68405 Cylindrical roller bearings | Outer Diameter :680mm ，Bore Diameter :500mm ，Size :500x680x420mm ，Brand:KOYO |
| GE120ES Plain bearings | Bore Diameter :120mm ，Width :85mm ，Outer Diameter :180mm ，Brand:FBJ ，Size :120x180x85mm ，d:120 mm |
| NA5917 Needle roller bearings | Outer Diameter :120mm ，Bore Diameter :85mm ，Brand:ISO ，Size :85x120x46mm |
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