319320-Cylindrical roller bearing-FGFA bearings

319320 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	BC4.10/W33WI
Bore type	Cylindrical

Dimensions

d	480 mm	Bore diameter
D	680 mm	Outside diameter
B	420 mm	Total bearing width over inner ring(s)
C	420 mm	Total bearing width over outer ring(s)
D₁	≈620.7 mm	Bore diameter loose flange ring
F	528 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
r_3,4	min.3 mm	Chamfer dimension on the outer ring

Calculation data

Basic dynamic load rating	C	9 130 kN
Basic static load rating	C₀	19 300 kN
Fatigue load limit	P_u	1 500 kN
Calculation factor	k_r	570

Tolerances: P6, P5
Radial internal clearance: cylindrical bore, tapered bore

Basic Parameters

Bearing Inner Diameter：480 mm
Bearing Outer Diameter：680 mm
Bearing Thickness：420 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.