BC4B 322993 A/HA7-Cylindrical roller bearing-FGFA bearings

BC4B 322993 A/HA7 Four-row cylindrical roller bearing

Cylindrical roller bearings feature cylindrical rollers as rolling elements and are classified as separable bearings. The rollers and raceways engage in line contact, enabling high load-carrying capacity. Primarily designed to accommodate radial loads, these bearings exhibit minimal friction between the rolling elements and the flange of the bearing ring, making them suitable for high-speed rotation. They offer exceptional load-carrying capability and maximum rotational speeds.

Design variant/feature	BC4.20/W33GWI
Bore type	Cylindrical with helical groove

Dimensions

d	460 mm	Bore diameter
D	650 mm	Outside diameter
B	460 mm	Total bearing width over inner ring(s)
C	424 mm	Total bearing width over outer ring(s)
D₁	≈594 mm	Outer ring shoulder diameter
F	510 mm	Raceway diameter inner ring
b	16.7 mm	Width of annular groove
K	9 mm	Diameter lubrication hole (outer ring)
r_1,2	min.11.5 mm	Corner radius/chamfer inner ring
α	20 °	Chamfer angle inner ring
r_3,4	min.3 mm	Chamfer dimension on the outer ring

Calculation data

Basic dynamic load rating	C	7 810 kN
Basic static load rating	C₀	18 300 kN
Fatigue load limit	P_u	1 530 kN
Calculation factor	k_r	530

Tolerances: Normal
Axial internal clearance

Basic Parameters

Bearing Inner Diameter：460 mm
Bearing Outer Diameter：650 mm
Bearing Thickness：460 mm

Wafangdian Fafuge Bearing Co., Ltd., rooted in Wafangdian Bearing Industry Base, is an emerging professional bearing manufacturer. Drawing on the base’s profound industrial heritage, we have upheld craftsmanship since inception, integrated precision manufacturing into R&D and production, and focused on the R&D and refined production of spherical roller bearings.