3B Scientific Motor, 12 V DC - Manual (Page 6)

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3. Technical data
Nominal voltage: 12 V DC
Max. permissible operating voltage: 15 V DC
Idling speed: 3800 rpm
Nominal speed at rated torque: 3100 rpm/5 mNm
Nominal current without load/
with nominal load:
55 / 210 mA
Power consumption: 2.9 W
Voltage per speed of rotation: 3.6 … 4.4
rpm
mV
Rotor impedance: 12
Ω
Starting torque: 29 mNm
Acceleration time (no-load): 12.5 ms
Direction of rotation: Reversible
Max. permissible bearing load:
radial at shaft-end: 5.0 N
axial: 0.5 N
∗
In the case of older motor models from an earlier
range, the voltage sensitivity is in the range of:
2.8 … 3.6
rpm
mV
4. Sample experiments
Fig. 1: Experiments on uniform motion (top) and friction (bottom)
Fig. 2: Excitation of transverse waves in a rubber band using a sine wave generator