22340 CCJA/W33VA406- Spherical roller bearings-FGFA bearings

22340 CCJA/W33VA406 Spherical roller bearing for vibratory applications, with 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

Cylindrical

Dimensions

d	200 mm	Bore diameter
D	420 mm	Outside diameter
B	138 mm	Width
d₂	≈249 mm	Shoulder diameter of inner ring
D₁	≈351 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, bore to P5 and outside diameter P6	ISO tolerance class for dimensions

Abutment dimensions

d_a	min.220 mm	Diameter of shaft abutment
D_a	max.400 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	2 439 kN
Basic static load rating	C₀	2 900 kN
Fatigue load limit	P_u	224 kN
Reference speed		1 200 r/min
Limiting speed		1 500 r/min
Limiting value	e	0.33
Calculation factor	Y₁	2
Calculation factor	Y₂	3
Calculation factor	Y₀	2
Permissible rotational acceleration for oil lubrication		540 m/s²
Permissible linear acceleration for oil lubrication		167 m/s²

Radial internal clearance

Minimum initial clearance	260 µm
Maximum initial clearance	340 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：200 mm
Bearing Outer Diameter：420 mm
Bearing Thickness：138 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.