Welded Axes; Calculation Of Lifting Speed - Chamberlain GAROG DK Series Operating Manual

DIMENSIONAL DRAWINGS - WELDED AXES / SET COLLARS
Fig. 7
Welded axes / set collars
Welded axes and set collars
Axis
Set collar 30
Set collar 40

CALCULATION OF LIFTING SPEED

Table for determination of the lifting speed & lifting force for roller doors
Roller/bale diameter
V with n2 = 14 rpm
V with n2 = 16 rpm
Lifting force with M = 120 Nm
* = Theoretical values, direct on the winding shaft, 20% deduction for friction has already been calculated.
With special door dimensions a load arm increase must be separately considered due to the profile thickness
Formula for roller door speed calculation:
5
L2
Dia. d
h9 fit
Vm=
Vm =
D =
d =
n =
3,14 =
19
L
M100
b x h
w x h
Use
none Bearing side
Drive side
none Bearing side
Drive side
Both sides
Both sides
(D+d x 3,14 x n)
[cm/sec]
2 x 60
Average lifting speed in cm/sec
Largest bale diameter in cm
Smallest bale diameter in cm
Nominal speed of drive in rpm
π
Circle constant
Article no.