The YSM Series provides small, low inertia servo motors in three metric frame sizes. Continuous torque capability of 1.5 to 22 lb-in (0.17 to 2.5 Nm) and speeds to 4,500 rpm are available. Typical applications include robotics, material handling, X-Y tables, medical and laboratory equipment, light packaging machines, office machinery, postal sorting and specialty machinery.
Motor Model
YSM102 115/230
YSM103 115/230
YSM206 115/230
YSM212 115/230
YSM323 115/230
Mechanical Data
Rotor Moment of Inertia
lb-in-s2
kg-m2
.000027
.0000031
.000045
.0000051
.000127
.000014
.00023
.000026
.00056
.000064
Rot. Mom. of In
(Brake Motors)
.000034
.0000039
.000052
.0000059
.00018
.000020
.00028
.000032
.00062
.000069
Motor Net Weight
lb
kg
1.2
0.54
1.5
0.68
3.0
1.36
4.2
1.90
7.8
3.54
Damping
lb-in/
kRPM
Nm/
0.022
0.002
0.03
0.003
0.08
0.009
0.10
0.01
0.19
0.021
Friction Torque
lb-in
Nm
0.04
0.005
0.06
0.007
0.20
0.29
0.64
0.072
Winding Data
YSM102
YSM103
YSM206
YSM212
YSM323
115V
230V
115V and 230V
Sine Wave KT Torque
Constant @ 25°C1
lb-in /A
Nm/A
0.73
1.46
0.16
1.02
0.11
1.8
0.21
0.9
0.1
1.97
0.22
2.1
0.24
3.3
0.37
2.9
0.370
Sq Wave KT Torque
Constant @ 25°C2
0.8
0.09
1.6
0.18
1.1
0.12
2.0
1.0
2.2
2.4
0.27
3.6
0.41
3.2
0.360
KE Voltage Constant3
10 V/kRPM
20 V/kRPM
14 V/kRPM
25 V/kRPM
13 V/kRPM
27V/kRPM
29 V/kRPM
45 V/kRPM
40 V/kRPM
Winding Resistance
Ph to phase @ 25°C (ohms)
4.6
18.8
8.9
0.79
1.32
.78
Winding Inductance
Phase to phase (mH)
5.5
22.3
3.8
11.5
2.7
12
5.1
12.4
6
Thermal Resistance4
2.3°C/watt
2.2°C/watt
1.3°C/watt
0.85°C/watt
Encoder Resolution (P/R)
2000
1Peak value of per phase sine wave Amps
2Peak value of per phase square wave Amps
3Peak value of sinusoidal phase to phase Volts
4At 125° C winding temperature, in a 40° C ambient, with motors mounted on aluminum heatsinks: Motors 102/103: .125" x 6" x 6", Motors 206/212: .250" x 8" x 8", Motor 323: .25" x 10" x 10".