C 30/630 KM/C4-CARB Circular roller bearing-FGFA bearings

C 30/630 KM/C4 CARB toroidal roller bearing with tapered bore (1:12)

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

Tapered 1:12

Dimensions

d	630 mm	Bore diameter
D	920 mm	Outside diameter
B	212 mm	Width
d₂	≈716 mm	Shoulder diameter of inner ring
D₁	≈840 mm	Shoulder or recess diameter of outer ring
s₁	max.48.1 mm	Permissible axial displacement
r_1,2	min.7.5 mm	Chamfer dimension

Abutment dimensions

d_a	min.645 mm	Diameter of shaft abutment
d_a	max.759 mm	Diameter of shaft abutment
D_a	min.807 mm	Diameter of housing abutment
D_a	max.892 mm	Abutment diameter housing
C_a	min.2.9 mm	Minimum width of space required in housing
r_a	max.6 mm	Radius of fillet
A negative value for C_a is theoretical.

Calculation data

FGFA performance class		FGFA Explorer
Basic dynamic load rating	C	6 800 kN
Basic static load rating	C₀	12 900 kN
Fatigue load limit	P_u	815 kN
Reference speed		480 r/min
Limiting speed		670 r/min
Misalignment factor	k₁	0.118
Internal clearance factor	k₂	0.104

Basic Parameters

Bearing Inner Diameter：630 mm
Bearing Outer Diameter：920 mm
Bearing Thickness：212 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.