21308EK NACHI 40x90x23mm Calculation factor (Y1) 2.55 Cylindrical roller bearings
| Bearing number | 21308EK |
| Size (mm) | 40x90x23 |
| Brand | NACHI |
| Bore Diameter (mm) | 40 |
| Outer Diameter (mm) | 90 |
| Width (mm) | 23 |
| d | 40 mm |
| D | 90 mm |
| B | 23 mm |
| C | 23 mm |
| r min. | 1.5 mm |
| Weight | 0.78 Kg |
| Basic dynamic load rating (C) | 119 kN |
| Basic static load rating (C0) | 95.5 kN |
| (Grease) Lubrication Speed | 6000 r/min |
| (Oil) Lubrication Speed | 7500 r/min |
| Calculation factor (e) | 0.26 |
| Calculation factor (Y0) | 2.5 |
| Calculation factor (Y1) | 2.55 |
Detailed Parameters
parameter：
| FY 1. WF Bearing units | B1:44.4 mm ，d:25.4 mm ，A1:30 mm ，s1:26.9 mm ，Brand:SKF ，Bore Diameter :25.4mm |
| K81105-TV Thrust roller bearings | Size :25x42x5mm ，Bore Diameter :25mm ，Width :5mm ，Outer Diameter :42mm ，Brand:INA |
| FYT 2. TF Bearing units | Width :55.6mm ，s1:33.4 mm ，Brand:SKF ，Bore Diameter :50.8mm ，d:50.8 mm |
| QJ224 Angular contact ball bearings | Outer Diameter :215mm ，Bore Diameter :120mm ，Brand:ISO ，Width :40mm ，Size :120x215x40mm |
| GEZ15ES Plain bearings | Outer Diameter :26.9875mm ，Brand:AST ，Bearing Type:plain ，Bore Diameter :15.875mm |
| 81140 M Cylindrical roller bearings | Brand:SKF ，Outer Diameter :200mm ，Size :250x200x37mm ，Width :37mm ，Bore Diameter :250mm |
| ZKLDF200 Angular contact ball bearings | Brand:INA ，Bore Diameter :200mm ，Width :45mm ，Outer Diameter :300mm ，Size :200x300x45mm |
| UCHA215-47 Bearing units | d:74.6125 mm ，Width :77.8mm ，Brand:KOYO ，Bore Diameter :74.6125mm ，A:70 mm |
| NAO85X115X30 Needle roller bearings | d:85 mm ，Fw:95 mm ，Bore Diameter :85mm ，Brand:KOYO ，Outer Diameter :115mm |
| PSL 610-310 Tapered roller bearings | Bore Diameter :187.325mm ，Size :187.325x269.875x211.138mm ，Outer Diameter :269.875mm ，Brand:PSL |
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