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NNU 4176 M - Precision cylindrical roller bearing - Double row cylindrical roller bearing

Product modelNNU 4176 M
d380 mm
D620 mm
B243 mm
Limiting speed1100 r/min
Reference speed850 r/min
D1≈550mm
Inner ring raceway diameter (F)442mm
Outer ring r1,2min.5mm
Inner ring chamfer dimension (r3,4)min.5mm
Permissible axial displacement of one ring relative to the other (s)max.7.4mm
Spacer shoulder diameter (da)max.434mm
dbmin.447mm
Spacer / Damax.600mm
Chamfer radius (ra)max.4mm
Chamfer radius (rb)max.4mm
Fatigue load limit(Pu)680kN
Calculation factor (kr)0.33
Bearing weight285kg

Product Details

The NNU 4176 M 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 4176 M / Double row cylindrical roller bearing / Precision cylindrical roller bearing