C 3068 M-CARB Circular roller bearing-FGFA bearings

C 3068 M CARB toroidal roller bearing

CARB spherical roller bearings are components that combine self-aligning capabilities with load-bearing advantages. They automatically compensate for misalignment between shafts and bearing housings while reliably sustaining radial loads and bidirectional axial forces. Characterised by high rigidity and superior impact resistance, they are well-suited for medium-to-high-speed applications. Featuring low friction coefficients and smooth operation, they also offer straightforward maintenance.

Bore type

Cylindrical

Dimensions

d	340 mm	Bore diameter
D	520 mm	Outside diameter
B	133 mm	Width
d₂	≈394 mm	Shoulder diameter of inner ring
D₁	≈475 mm	Shoulder or recess diameter of outer ring
s₁	max.25 mm	Permissible axial displacement
r_1,2	min.5 mm	Chamfer dimension

Abutment dimensions

d_a	min.358 mm	Diameter of shaft abutment
d_a	max.425 mm	Diameter of shaft abutment
D_a	min.454 mm	Diameter of housing abutment
D_a	max.502 mm	Abutment diameter housing
C_a	min.2.1 mm	Minimum width of space required in housing
r_a	max.4 mm	Radius of fillet
A negative value for C_a is theoretical.

Calculation data

FGFA performance class		FGFA Explorer
Basic dynamic load rating	C	2 900 kN
Basic static load rating	C₀	5 000 kN
Fatigue load limit	P_u	375 kN
Reference speed		950 r/min
Limiting speed		1 300 r/min
Misalignment factor	k₁	0.12
Internal clearance factor	k₂	0.099

Basic Parameters

Bearing Inner Diameter：340 mm
Bearing Outer Diameter：520 mm
Bearing Thickness：133 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.