23068 CACK/W33- Spherical roller bearings-FGFA bearings

23068 CACK/W33 Spherical roller bearing with tapered bore and relubrication features

Self-aligning roller bearings are heavy-duty transmission components featuring automatic self-alignment. Their core comprises an inner ring, outer ring, barrel-shaped rollers, and a cage. They offer high load-carrying capacity, capable of simultaneously withstanding substantial radial loads and minor axial loads. These bearings exhibit excellent impact resistance, stable operation, and suitability for medium-to-low speed, heavy-load applications. They demonstrate low wear and extended service life.

Bore type

Tapered 1:12

Dimensions

d	340 mm	Bore diameter
D	520 mm	Outside diameter
B	133 mm	Width
d₂	≈398 mm	Shoulder diameter of inner ring
D₁	≈468 mm	Shoulder/recess diameter of outer ring
b	22.3 mm	Width of lubrication groove
K	12 mm	Diameter of lubrication hole
r_1,2	min.5 mm	Chamfer dimension
	Normal	ISO tolerance class for dimensions

Abutment dimensions

D_a	max.502 mm	Diameter of housing abutment
r_a	max.4 mm	Radius of fillet

Calculation data

FGFA performance class		FGFA Explorer
Basic dynamic load rating	C	2 812 kN
Basic static load rating	C₀	4 550 kN
Fatigue load limit	P_u	335 kN
Reference speed		1 000 r/min
Limiting speed		1 300 r/min
Limiting value	e	0.24
Calculation factor	Y₁	2.8
Calculation factor	Y₂	4.2
Calculation factor	Y₀	2.8

Tolerances of run-out

ISO tolerance class for geoal tolerances

Normal

Radial internal clearance

Minimum initial clearance	270 µm
Maximum initial clearance	360 µm

Tolerances: Normal, P6, P5,
tapered bore 1:12, tapered bore 1:30
Radial internal clearance: cylindrical bore, tapered bore

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.