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BC4-8021/HB1 - Precision cylindrical roller bearing - Four row cylindrical roller bearing

Product modelBC4-8021/HB1
d850 mm
D1180 mm
B6 mm mm
Total bearing width on inner ring (B)850mm
Total bearing width on outer ring (C)850mm
Loose flange ring bore diameter (D1)≈1083.7mm
Inner ring raceway diameter (F)940mm
Annular groove width (b)22.3mm
Lubrication hole diameter (outer ring) (K)12mm
Inner ring fillet radius/chamfer (r1,2)min.20mm
Inner ring chamfer (α)20°
Outer ring chamfer dimension (r3,4)min.4mm
Fatigue load limit(Pu)4650kN
Calculation factor (kr)700
Bearing weight2900kg

Product Details

The BC4-8021/HB1 is part of the Four 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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BC4-8021/HB1 / Four row cylindrical roller bearing / Precision cylindrical roller bearing