Cylindrical roller bearing NN3024K
This kind of bearing has the advantages of compact structure, large rigidity, large bearing capacity, small deformation after loading and so on.
Especially suitable for the spindle support of machine tools.
The conical inner hole can also play a role in micro-adjusting the clearance, and can simplify structure of the positioning device, convenient installation and disassembly.
This bearing is double row cylindrical Roller Bearing.
It has two structures: cylindrical inner hole and tapered inner hole (K type).
NN type bearing has no guard on the outer ring, the inner ring has a guard on both sides and a middle guard. It is possible to allow displacement in two directions in the axial direction between the shaft and the bearing housing.
DIMENSIONS
Data | Item | NN3024K |
discription | Double row cylindrical Roller Bearing | |
Size | d | 120 |
D | 180 | |
B | 46 | |
r | 2 | |
Fw | / | |
Ew | 165 | |
Load rating | Cr | 239000 |
Cor | 405000 | |
Limited speed | Grease | 3200 |
Oil | 3800 | |
Install size | a(2) | 129 |
1a | 131 | |
c | / | |
Da | 171 167 | |
a | 2 | |
Mass | kg | 4.04 |
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