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NNC 4844 CV - Precision cylindrical roller bearing - Double row full loaded cylindrical roller bearing

Product modelNNC 4844 CV
d220 mm
D270 mm
B50 mm
Limiting speed1200 r/min
Reference speed1000 r/min
d1≈241mm
D1≈250.5mm
Outer ring lubrication groove width (b1)7mm
Lubrication hole diameter (outer ring) (K)4mm
Chamfer dimension, open bearing (r1,2)min.1.5mm
Shaft shoulder diameter (da) min.min.227mm
Shaft shoulder diameter (das)233mm
Housing shoulder dimension (Da)max.263mm
Chamfer radius (ra)max.1.5mm
Fatigue load limit(Pu)85kN
Calculation factor (kr)0.2
Bearing weight6.4kg

Product Details

The NNC 4844 CV is part of the Double row full loaded 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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NNC 4844 CV / Double row full loaded cylindrical roller bearing / Precision cylindrical roller bearing