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 |
|
||
50 |
90 |
20 |
HCB7210-E-T-P4S |
P4 |
28 |
21.2 |
17000 |
28000 |
0.39 |
Product Model | Inside Diameter | Outside Diameter | Thickness |
7311 NTN | 55 | 120 | 29 |
7211 NTN | 55 | 100 | 21 |