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 |
HC71909-E-T-P4S, HC71909ETP4S, HC71909 |
P4 |
6.55 |
6.3 |
26000 |
38000 |
0.13 |
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| NN3060K NTN | 300 | 460 | 118 |
| NN4960K NTN | 300 | 420 | 118 |