NSK BL308NR
Product Details
Bore Type | Tapered Bore |
Enclosure | Open |
Configuration | Double Row |
Roller Profile | Symmetric |
Center Guidance | Fixed Inner Ring Rib |
Retainer Material | Machined Brass |
Nr. of Holes | 8 |
Weight | 116.000 kg |
d | 380 mm |
D | 560 mm |
B | 135 mm |
Fillet Radius/Chamfer | 5 mm |
Groove Width A | 26 mm |
Hole Diameter (do) | 12 mm |
Dynamic Load Rating | 3,300,000 N |
Static Load Rating | 4,700,000 N |
Limiting Speed - Grease | 750 rpm |
Limiting Speed - Oil | 940 rpm |
Constant e | 0.23 |
Axial Load Factor Y0 | 2.86 |
Axial Load Factor Y1 | 2.92 |
Axial Load Factor Y2 | 4.35 |
Radial Clearance | 0.400 to 0.520 mm |
da (min) | 402 mm |
Da (max) | 538 mm |
ra (max) | 4 mm |