Engineering Guide CDA3000
A-11
Appendix A Formula bank
DE
EN
1
2
3
4
5
6
7
A
F
Circumferential force
N
J
Overall mass moment of inertia
kg
·
m²
M
Motor torque
Nm
M
L
Load torque
Nm
n
Speed
rpm
P
Motor power
W
P
L
Power output of load
W
r
Radius of drive roller
mm
t
BE
Acceleration time
s
∆ν
Differential speed
rpm
ω
Angular velocity
1/s
PA 6 and PA 66
0.2 to 0.4
PE - LD
0.2 to 0.25
PE - HD
0.25 to 0.3
PP
0.25 to 0.3
PVC
0.15 to 0.2
Torques
Torque to produce translational movement
Acceleration torque
Acceleration time
Table 7.10
Torques
Thermoplast
Specific drive power
in kWh/kg
Table 7.9
Specific drive power for various thermoplasts
A.2.3 Torques
M
F r
⋅
1000
-----------
9 55
P
n
--
⋅
,
=
=
M
BE
J
ω
·
⋅
J
n
·
9 55
,
-----------
⋅
J
=
n
∆
9 55
,
t
BE
⋅
----------------------
⋅
=
=
t
BE
J
n
∆
9 55
,
M
(
M
L
)
–
⋅
--------------------------------------
⋅
J
n
)
2
∆
(
91 2
,
P
(
P
L
)
–
⋅
-----------------------------------
⋅
=
=
