SKF super precision cylindrical roller bearings,double row NN series
Description:
SKF super-precision cylindrical roller bearings are characterized by:
- high speed capability
- high radial load carrying capacity
- high rigidity
- low friction
- low cross-sectional height
These bearings are therefore particularly well suited for machine tool spindles where the bearing arrangement must accommodate heavy radial loads and high speeds, while providing a high degree of stiffness.
SKF super-precision single row cylindrical roller bearings have a higher speed capability than double row bearings while double row bearings are more suitable for heavier loads.
Package of SKF super precision bearings:
NN3018 KTN/SP cylindrical roller bearing,double row,super precision
NN3018KTN/SP bearing details:
Bearing No. |
NN3018KTN9/SP |
|
Main Dimension |
mm |
Inside Dia-d |
90 |
Outside Dia-D |
140 |
Width-B |
37 |
Mass(kg) |
1.95 |
OEM Service |
Yes |
Bearing Name |
Double row cylindrical roller bearings |
Cage |
PA66 cage, roller centred |
Clearance |
C2;C3;C4 |
Tolerance |
P5;P4;P2 |
Structure |
Cylindrical |
Designation |
- |
Cylindrical bore (no designation suffix) |
K |
Tapered bore,taper 1:12 |
- |
Machined brass cage(no designation suffix) |
TN |
PA66 cage,roller centered |
TN9 |
Glass fibre reinforced PA66 cage, roller centred |
SP |
Dimensional accuracy in accordance with ISO tolerance class 5, running accuracy in accordance with ISO tolerance class 4 |
UP |
Dimensional accuracy in accordance with ISO tolerance class 4, running accuracy better than ISO tolerance class 4 |
W33 |
Annular groove and three lubrication holes in the outer ring |
W33X |
Annular groove and six lubrication holes in the outer ring |
Interchange |
SKF |
NN3018KTN/SP |
|
|
NTN |
|
NSK |
|
KOYO |