Description: Machine tool main spindle bearing
Basic Dimensions(mm) |
Bearing Designations |
Precision Rating |
basic load rating(KN) |
Limiting Speed (r/min) |
Weight (KGS) |
||||
d |
D |
B |
Cr |
Cor |
Grease |
oil |
|
||
45 |
68 |
12 |
HCB71909-C-T-P4S, HCB71909CTP4S, HCB71909 |
P4 |
12.9 |
10.8 |
24000 |
38000 |
0.11 |
Product Model | Inside Diameter | Outside Diameter | Thickness |
NN3009 NTN | 45 | 75 | 23 |
NN3008 NTN | 40 | 68 | 21 |