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 |
|
||
55 |
72 |
9 |
HCB71811-E-TPA-P4 |
P4 |
6.7 |
6.7 |
19000 |
32000 |
0.08 |
Product Model | Inside Diameter | Outside Diameter | Thickness |
7209B NTN | 45 | 85 | 19 |
7909 NTN | 45 | 68 | 12 |