BC2B 326372/HA1-Cylindrical roller bearing-FGFA bearings

BC2B 326372/HA1 Double 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

NN.1/C4W33

Dimensions

d	1 319.5 mm	Bore diameter
D	1 720 mm	Outside diameter
B	300 mm	Overall bearing width
d₁	≈1 464 mm	Shoulder diameter inner ring
E	1 636 mm	Raceway diameter outer ring
b	22.3 mm	Width of annular groove
K	12 mm	Diameter lubrication hole
r_1,2	min.7.5 mm	Chamfer dimension inner ring
r_3,4	min.7.5 mm	Chamfer dimension outer ring
s	max.7 mm	Permissible axial displacement from the normal position of one bearing ring relative to the other

Abutment dimensions

d_a	min.1 344 mm	Abutment diameter spacer sleeve
D_a	min.1 645 mm	Abutment diameter spacer sleeve / housing
D_a	max.1 689 mm	Abutment diameter spacer sleeve / housing
r_a	max.6 mm	Fillet radius
r_b	max.6 mm	Fillet radius

Calculation data

Basic dynamic load rating	C	12 500 kN
Basic static load rating	C₀	34 500 kN
Fatigue load limit	P_u	2 000 kN
Reference speed		160 r/min
Limiting speed		240 r/min
Calculation factor	k_r	0.15

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

Basic Parameters

Bearing Inner Diameter：1319.5 mm
Bearing Outer Diameter：1720 mm
Bearing Thickness：300 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.