BC4B 326261/HA1-Cylindrical roller bearing-FGFA bearings

BC4B 326261/HA1 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	BC4.12/W33G
Bore type	Cylindrical with helical groove

Dimensions

d	475 mm	Bore diameter
D	600 mm	Outside diameter
B	368 mm	Total bearing width over inner ring(s)
C	368 mm	Total bearing width over outer ring(s)
D₁	≈562.3 mm	Outer ring shoulder diameter
F	504 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.12 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	5 500 kN
Basic static load rating	C₀	14 600 kN
Fatigue load limit	P_u	1 270 kN
Calculation factor	k_r	500

Tolerances: Normal
Axial internal clearance

Basic Parameters

Bearing Inner Diameter：475 mm
Bearing Outer Diameter：600 mm
Bearing Thickness：368 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.