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 |
B71909-E-T-P4S, B71909ETP4S, B71909 |
P4 |
17.6 |
15 |
18000 |
30000 |
0.13 |
Product Model | Inside Diameter | Outside Diameter | Thickness |
NN3011 NTN | 55 | 90 | 26 |
NN3010 NTN | 50 | 80 | 23 |