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NNU 4152 M/W33 - Precision cylindrical roller bearing - Double row cylindrical roller bearing

Product modelNNU 4152 M/W33
d260 mm
D440 mm
B180 mm
Limiting speed1600 r/min
Reference speed1300 r/min
D1≈387mm
Inner ring raceway diameter (F)306mm
Annular groove width (b)13.9mm
Lubrication hole diameter (K)7.5mm
Outer ring r1,2min.4mm
Inner ring chamfer dimension (r3,4)min.4mm
Permissible axial displacement of one ring relative to the other (s)max.5.1mm
Spacer shoulder diameter (da)max.300mm
dbmin.310mm
Spacer / Damax.424mm
Chamfer radius (ra)max.3mm
Chamfer radius (rb)max.3mm
Fatigue load limit(Pu)365kN
Calculation factor (kr)0.31
Bearing weight110kg

Product Details

The NNU 4152 M/W33 is part of the Double row cylindrical roller bearing series within our Precision cylindrical roller bearing range. It is engineered for high-performance industrial use and delivers reliable operation under demanding working conditions.

Typical applications include: machine tool spindles, rolling mills, gearboxes and industrial pumps. For detailed dimensions and load ratings, please refer to the specification table above. Contact FIJ for bulk pricing, technical support or customized solutions.

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NNU 4152 M/W33 / Double row cylindrical roller bearing / Precision cylindrical roller bearing