VLA200644-N-ZT

Slewing ring, four Point contact bearings, external gear

Display units

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Imperial

Main Dimensions & Performance Data

d_iZT	536 mm	Diameter centring inner ring
	IT8	Diameter centring inner ring tolerance
h_{f IR}	12 mm	height of flange
H	56 mm	Height
D_a	742.3 mm	Outside Diameter
D_{i ZT}	647 mm	Diameter centring outer ring
	IT8	Diameter centring outer ring tolerance
T	4.5	Length centering outer ring
t	12	Length centering inner ring
h_a	44.5 mm	Width outer ring
h_i	44.5 mm	height of individual ring
≈m	48.5 kg	Weight

Dimensions

D_i	645.5 mm	inner diameter outer ring
	0.6 mm	Inner diameter outer ring upper tolerance
	0 mm	Inner diameter outer ring lower tolerance
d_a	642.5 mm	Outside diameter inner ring
	0 mm	Outside diameter inner ring upper tolerance
	-0.6 mm	Outside diameter inner ring lower tolerance
n_i	16	Number of fixing holes in inner ring
L_i	562 mm	Pitchcircle diameter fixing holes inner ring
d_B	18 mm	Fixing bore
n_a	16	Number of fixing holes in outer ring
L_a	685 mm	Pitchcircle diameter fixing holes outer ring
d_Ba	M12	Tread fixing bore
G_l	20 mm	Thread depth fixing hole
h_AIR	20 mm	Ring cross section
F_{r zul}	66,100 N	Max. radial load fixing screws (friction locking)
d₀	732 mm	Pitch circle diameter gearing
m	6 mm	Modul of gearing
z	122	Number of teeth
F_{z norm}	21,300 N	Max. tooth force root fatigue strenght (at a shock factor of 1,2)
F_{z max}	31,500 N	Max. tooth force against tooth fracture (at a shock factor of 1,35)

Temperature range

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

Calculation factors

C_a	162,000 N	Basic dynamic load rating, axial
C_0a	455,000 N	Basic static load rating, axial
C_r	147,000 N	Basic dynamic load rating, radial (for radial load only)
C_0r	171,000 N	Basic static load rating, radial (for radial load only)

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Centering	ZT	Centering on inner and outer ring
Gearing	N	Normalized gear teeth on bearing ring
Radial Clearance		standard radial clearance 0 to 0,5 and axial tilting clearance 0 to 0,7

Characteristics

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