N 317 ECP-Cylindrical roller bearing-FGFA bearings

N 317 ECP Single row cylindrical roller bearing, N design

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.

Dimensions

d	85 mm	Bore diameter
D	180 mm	Outside diameter
B	41 mm	Width
d₁	≈117 mm	Shoulder diameter of inner ring
E	160 mm	Raceway diameter of outer ring
r_1,2	min.3 mm	Chamfer dimension
r_3,4	min.3 mm	Chamfer dimension
s	max.2.3 mm	Permissible axial displacement

Abutment dimensions

d_a	min.99 mm	Diameter of spacer sleeve
d_a	max.157 mm	Diameter of spacer sleeve
D_a	min.163 mm	Diameter of housing abutment
D_a	max.166 mm	Diameter of housing abutment
r_a	max.2.5 mm	Radius of fillet
r_b	max.2.5 mm	Radius of fillet

Calculation data

FGFA performance class		FGFA Explorer
Basic dynamic load rating	C	340 kN
Basic static load rating	C₀	335 kN
Fatigue load limit	P_u	41.5 kN
Reference speed		4 000 r/min
Limiting speed		4 800 r/min
Minimum load factor	k_r	0.12
Limiting value	e	0.2
Calculation factor	Y	0.6

Basic Parameters

Bearing Inner Diameter：85 mm
Bearing Outer Diameter：180 mm
Bearing Thickness：41 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.