21308MBK AST Dynamic Load Rating (Cr) 74.000 40x90x23mm Spherical roller bearings
| Bearing number | 21308MBK |
| Size (mm) | 40x90x23 |
| Brand | AST |
| Bore Diameter (mm) | 40 |
| Outer Diameter (mm) | 90 |
| Width (mm) | 23 |
| Bearing Type | tapered bore |
| Bore Dia (d) | 40.0000 |
| Outer Dia (D) | 90.0000 |
| Width (B) | 23.0000 |
| Radius (min) (rs) | 1.500 |
| Dynamic Load Rating (Cr) | 74.000 |
| Static Load Rating (Cor) | 69.500 |
| Max Speed (Grease) (X1000 RPM) | 5 |
| Max Speed (Oil) (X1000 RPM) | 6 |
| Weight (g) | 770.00 |
| Material | 52100 Chrome steel. or equivalent |
Detailed Parameters
parameter：
| 54411 Thrust ball bearings | Width :92mm ，Brand:ISO ，d:57 mm ，Outer Diameter :120mm ，Bore Diameter :57mm ，Size :57x120x92mm |
| 230/630-K-MB-W33+OH30/630-H Spherical roller bearings | Outer Diameter :920mm ，Brand:NKE ，Bore Diameter :630mm ，Size :630x920x212mm |
| CSCU045-2RS Deep groove ball bearings | d:4 1/2 inch ，Brand:INA ，Bore Diameter :114.3mm ，Size :114.3x133.35x12.7mm ，Width :12.7mm ，Outer Diameter :133.35mm |
| 4T-47679/47620 Tapered roller bearings | e:0.4 ，Y0:0.82 ，d1:108 mm ，Y2:1.48 ，a:29.44 mm |
| 7907DT Angular contact ball bearings | Brand:CYSD ，Outer Diameter :55mm ，Bore Diameter :35mm ，Size :35x55x10mm |
| 2305ETN9 Self aligning ball bearings | Outer Diameter :62mm ，Size :25x62x24mm ，Bore Diameter :25mm ，Brand:SKF |
| 231/710-B-K-MB Spherical roller bearings | Size :710x1150x345mm ，Outer Diameter :1150mm ，Bore Diameter :710mm ，Brand:FAG ，Width :345mm ，d:710 mm |
| 6805N Deep groove ball bearings | Outer Diameter :37mm ，d:25 mm ，Width :7mm ，Size :25x37x7mm ，Brand:NTN ，Bore Diameter :25mm |
| UCF204 Bearing units | Bore Diameter :20mm ，d:20 mm ，Z:33.3 mm ，Width :31mm ，Brand:ISO |
| HH231649/HH231615 Tapered roller bearings | Bore Diameter :139.7mm ，Outer Diameter :295.275mm ，Size :139.7x295.275x87.312mm ，Brand:NTN |
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