23076-2CS5K/VT143- Spherical roller bearings-FGFA bearings

23076-2CS5K/VT143 Spherical roller bearing with tapered bore, integral sealing 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	380 mm	Bore diameter
t_Δdmp	0.0 – 0.057 mm	Deviation limits of mid-range bore diameter
t_ΔSL	0.0 – 0.057 mm	Deviation limits of tapered slope
D	560 mm	Outside diameter
t_ΔDmp	-0.05 – 0.0 mm	Deviation limits of mid-range outside diameter
B	135 mm	Width
t_ΔBs	-0.4 – 0.0 mm	Deviation limits of ring width
d₂	≈419 mm	Shoulder diameter of inner ring
D₁	≈529 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.542 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	2 987 kN
Basic static load rating	C₀	5 000 kN
Fatigue load limit	P_u	360 kN
Limiting speed		260 r/min
Limiting value	e	0.2
Calculation factor	Y₁	3.4
Calculation factor	Y₂	5
Calculation factor	Y₀	3.2

Tolerances of run-out

Range of section height at inner ring of assembled bearing	t_Kia	60 µm
Range of section height at outer ring of assembled bearing	t_Kea	100 µm
ISO tolerance class for geoal tolerances		Normal

Radial internal clearance

Minimum initial clearance	300 µm
Maximum initial clearance	400 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：380 mm
Bearing Outer Diameter：560 mm
Bearing Thickness：135 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.