NCF 2938 CV
Single row full complement cylindrical roller bearing, NCF design
Single row full complement cylindrical roller bearings are designed to accommodate very high radial loads in combination with moderate speeds.
The bearings incorporate a maximum number of rollers as they are not equipped with a cage. Having two integral flanges on the inner ring and one flange on the outer ring, NCF design bearings can accommodate axial displacement in one direction. A retaining ring on the outer ring holds the bearing together. The retaining ring should not be loaded axially during operation.
- Very high radial load carrying capacity
- High radial stiffness
- Long service life
- Locate the shaft axially in one direction
Dimensions
| d |
190 mm
|
Bore diameter |
| D |
260 mm
|
Outside diameter |
| B |
42 mm
|
Width |
| d1 |
≈212 mm
|
Shoulder diameter inner ring |
| D1 |
≈236 mm
|
Shoulder diameter outer ring |
| E |
244 mm
|
Raceway diameter outer ring |
| s |
max.2 mm
|
Permissible axial displacement from the normal position of one bearing ring relative to the other |
| r1,2 |
min.2 mm
|
Chamfer dimension |
| r3,4 |
min.1.1 mm
|
Chamfer dimension |
Abutment dimensions
| da |
min.199 mm
|
Abutment diameter shaft |
| das |
208 mm
|
Abutment diameter shaft |
| Da |
max.250 mm
|
Abutment diameter housing |
| Db |
max.252 mm
|
Abutment diameter housing |
| ra |
max.2 mm
|
Fillet radius |
| rb |
max.1 mm
|
Fillet radius |
Calculation data
| Basic dynamic load rating |
C |
440 kN
|
| Basic static load rating |
C0 |
780 kN
|
| Fatigue load limit |
Pu |
81.5 kN
|
| Reference speed |
|
1 100 r/min
|
| Limiting speed |
|
1 400 r/min
|
| Calculation factor |
kr |
0.2
|
| Limiting value |
e |
0.3
|
| Calculation factor |
Y |
0.4
|
