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-C-T-P4S, HC71909CTP4S, HC71909 |
P4 |
6.95 |
6.7 |
28000 |
43000 |
0.13 |
Product Model | Inside Diameter | Outside Diameter | Thickness |
NN3064K NTN | 320 | 480 | 121 |
NN4964K NTN | 320 | 440 | 118 |