19
DIMENSIONAL DRAWINGS - WELDED AXES / SET COLLARS
CALCULATION OF LIFTING SPEED
L
5
L2
Ød
b x h
M100
Fig. 7
Vm (sm/sec)
Formula for roller door speed calculation:
Vm
=
Average lifting speed in cm/sec
D
=
Largest bale diameter in cm
d
=
Smallest bale diameter in cm
n
=
Nominal speed of drive in rpm
3,14
=
Circle constant
π
Vm=
(D+d x 3,14 x n)
2 x 60
[cm/sec]
Welded axes / set collars
Axis
Dia. d
w x h
Use
Article no.
Welded axes and set collars
Bearing side
Drive side
Drive side
Both sides
Both sides
Set collar 30
Set collar 40
h9 fit
none
none
Bearing side
Table for determination of the lifting speed & lifting force for roller doors
* = 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
Roller/bale diameter
V with n2 = 14 rpm
V with n2 = 16 rpm
Lifting force with M = 120 Nm
Intelligent Security & Fire Ltd.