PRODUCTS

FAG INA Schaeffler

INA

VU250380-ZT

Slewing Ring, Four Point contact bearing, without gear teeth VU250380-ZT

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Main Dimensions & Performance Data

d_i	275 mm	Inner diameter inner ring
	0.5 mm	Inner diameter inner ring lower tolerance
	0.5 mm	Inner diameter inner ring upper tolerance
d_iZT	277 mm	Diameter centring inner ring
	IT8	Diameter centring inner ring tolerance
H	55 mm	Height
D_a	485 mm	Outside Diameter
	0.8 mm	Outside diameter lower tolerance
	0.8 mm	Outside diameter upper tolerance
D_{a ZT}	483 mm	Centring diameter outer ring
	-IT8	Diameter centring outer ring tolerance
T	8 mm	Length centering outer ring
t	8 mm	Length centering inner ring
h_a	50 mm	Width outer ring
h_i	50 mm	Width inner ring
	0.06 mm	Normal radial clearance min.
	0.25 mm	Normal radial clearance max.
	0.11 mm	Normal axial clearance min.
	0.41 mm	Normal axial clearance max.
≈m	44 kg	Weight

Dimensions

D_i	379 mm	Inner diameter outer ring
d_a	381 mm	Outside diameter inner ring
d_B	18 mm	Fixing bore
L_a	453 mm	Pitchcircle diameter fixing holes outer ring
n_a	16	Number of fixing holes in outer ring
L_i	307 mm	Pitchcircle diameter fixing holes inner ring
n_i	16	Number of fixing holes in inner ring
F_{r zul}	107,000 N	Max. radial load fixing screws (friction locking)

Temperature range

T_min	-25 °C	Operating temperature min.
T_max	80 °C	Operating temperature max.

Calculation factors

C_a	280,000 N	Basic dynamic load rating, axial
C_0a	790,000 N	Basic static load rating, axial
C_r	255,000 N	Basic dynamic load rating, radial (for radial load only)
C_0r	365,000 N	Basic static load rating, radial (for radial load only)

Your current product variant

Centering	ZT	Centering on inner and outer ring

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