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NNF 5052 B-2LS - Precision cylindrical roller bearing - Double row full loaded cylindrical roller bearing

Product modelNNF 5052 B-2LS
d260 mm
D400 mm
B190 mm
Limiting speed300 r/min
Outer ring width, sealed bearings (C)189mm
d1≈309mm
Outer ring snap ring groove diameter (D3)394mm
Distance between two snap ring grooves on outer ring outside surface (C1)162.2mm
Distance tolerance C10.2mm
Outer ring face to snap ring groove distance, sealed (C2)13.4mm
Outer ring snap ring groove width (b)6.3mm
Outer ring lubrication groove width (b1)9.5mm
Lubrication hole diameter (outer ring) (K)6mm
Chamfer dimension, sealed bearings (r)min.2mm
Chamfer dimension (r3,4)min.1.1mm
Shaft shoulder diameter (da) min.min.268mm
Shaft shoulder diameter (das)300mm
Shoulder width for SW snap ring, sealed (Ca1)154mm
Shoulder tolerance Ca (SW snap ring)0.2mm
Shoulder width for DIN 471 snap ring, sealed (Ca2)150mm
Shoulder tolerance Ca (DIN 471 snap ring)0.2mm
Chamfer radius (ra)max.2mm
Fatigue load limit(Pu)455kN
Calculation factor (kr)0.4
Bearing weight86.2kg

Product Details

The NNF 5052 B-2LS 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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NNF 5052 B-2LS / Double row full loaded cylindrical roller bearing / Precision cylindrical roller bearing