NCF 29/670 V

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	670 mm	Bore diameter
D	900 mm	Outside diameter
B	136 mm	Width
d1	≈748 mm	Shoulder diameter inner ring
D1	≈827 mm	Shoulder diameter outer ring
E	846 mm	Raceway diameter outer ring
s	max.10 mm	Permissible axial displacement from the normal position of one bearing ring relative to the other
r1,2	min.6 mm	Chamfer dimension

Abutment dimensions

da	min.693 mm	Abutment diameter shaft
das	737 mm	Abutment diameter shaft
Da	max.877 mm	Abutment diameter housing
Db	max.877 mm	Abutment diameter housing
ra	max.5 mm	Fillet radius

Calculation data

Basic dynamic load rating	C	3 910 kN
Basic static load rating	C0	9 000 kN
Fatigue load limit	Pu	630 kN
Reference speed		260 r/min
Limiting speed		320 r/min
Calculation factor	kr	0.2
Limiting value	e	0.3
Calculation factor	Y	0.4