The
D.C micro motor has a linear relationship
between the load torque and speed, & load
torque and current. If the load is increased,
the motor will still run at a lower rpm, However,
a motor has a point where the best efficiency
is obtained. When using the motor within this
efficiency range allows the expected life
and performance to be attained. When used
with overload, it may generate heat, causing
possible failure. In this case, protective
measures must be considered. Avoid locking
the output shaft or locking it repeatedly.
D.C
MOTOR can change speed by changing power supply
voltage. Above Graph is showing the relationship
between current/speed and torque of motor
when the voltage.
ex) Motor specification Voltage-D.C 24V, RPM-6200,
Torque-61.76g-cm
Case using at 12V
Speed 6200RPM x 24V/12V ¡Ö 3100RPM
Torque 61.76g-cm x 24V/12V ¡Ö 30.88g-cm
When
have gotten output rotated motor, need electrical
energy. Method to supply this electrical in
several kinds. Have better use definite voltage
power among graph who is marked on this catalog.
Please check about power of when use because
affect different life and performance of motor
in power kind need to confirm influence in
special quality of motor.
Torque
kg-cm
oz-in
ft-lbf
Nm
mNm
1
13.886
0.07235
0.098
98
0.072
1
0.005208
0.007057
7.057
13.82
192.01
1
1.3549
1354.9
10.2
141.7
0.738
1
1000
0.0102
0.1417
0.000738
0.001
1
Mass
g
kg
oz
lb
gr(grain)
1
0.001
0.03527
0.002205
15.432
1000
1
35.27
2.205
15432
28.35
0.02835
1
0.0625
437.5
453.5
0.4535
16
1
7000
0.0648
0.0000648
0.002285
0.0001428
1
Length
cm
m
in
ft
yd
1
0.01
0.3937
0.03281
0.01094
100
1
39.37
3.281
1.094
2.54
0.0254
1
0.08333
0.02778
30.48
0.3048
12
1
0.333
91.44
0.9144
36
3
1
Input Pi(Watt)
=
Power supply voltage E(V)
X
Current I(A)
Out put Po(Watt)
=
Torque T(kgf¤ýcm)
X
Speed N(rev/min)
X 1.027 X 10-2
Efficiency ¥ç(%)
=
Output
Po(W)
X 1000
Input
Pi(W)
..P
: Required output (W)
..W : Weight
(kg)
..V : Velocity
(m/sec)
.......V = 2¥ð
x R x N x 1/60
..N : Speed of
the drum (rpm)
..¥ç : Mechanical
efficiency (%)
..R : Radius
of the drum (m) ..P =
9.8 ¡¿ W ¡¿ V ¡¿ 100/¥ç
..P
: Required output (W)
..W : Vehicle gross weight (kg)
..V : Velocity
(m/hr)
.......V = ¥ð
x D x N x 60 x 10-6
..N : Speed of
wheel (rpm)
..¥ç : Mechanical
efficiency (%)
..D : Radius
of wheel (mm)
..¥è : Angle of
inclination (¡Æ)
..¥ì : Rolling
friction coefficient ..P =
9.8 ¡¿ W(sin¥è
+ ¥ìcos¥è) ¡¿ V/3.6 ¡¿ 100/¥ç
..P
: Required output (W)
..W : weight per length of belts (kg/m)
..V : Velocity
(m/sec)
..L : weight
of conveyor (m)
..¥ç : Mechanical
efficiency (%)
..Q : Carry-volume
(kgf/h)
..H : high of
inclination of conveyor (m)
..no-load Power (P1) ..P1
= 9.8 ¡¿ ¥ì ¡¿ W ¡¿ V ¡¿ ¥ç ¡¿ L [Watt] ..Horizontal
power (P2) ..P2
= ¥ì ¡¿ Q ¡¿ L/367 [Watt]
..Vertical power
(P2)
..P3
= (P1 + P2 + P3)
100
¥ç
When
a geared motor is used, certain environmental
requirements must be fulfilled. Lubricant
prevents turning when the ambient temperature
falls below 0¡É and starting may be slightly
difficult. If used outside our recommended
temperature range from -10¡É¢¦+60¡É,and 20%¢¦85%RH,
when used within the recommended temperature
range, but at a lower temperature, please
contact us for proper lubrication.
