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 |
XC71909-C-T-P4S, XC71909CTP4S, XC71909 |
P4 |
15.6 |
6.7 |
38000 |
56000 |
0.13 |
Product Model | Inside Diameter | Outside Diameter | Thickness |
NN3056 NTN | 280 | 420 | 106 |
NN4956 NTN | 280 | 380 | 100 |