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Coreless DC Motor

  • Model20SYK5120.A
  • Connectionwith wires
  • Brushesprecious metal brushes
  • Bearingssleeve bearing
  • DatasheetPDF File
Operating parameters(25C)
 
Assigned power
W

3.2

Max.efficiency
%

84

Nominal voltage
Volt

9

Limits for continuous operating Max.continuous current
mA

393

Terminal resistance±10%
Ohm

2.2

mNm
mNm

4.21

No-Load speed±10%
rpm

8,030

Nominal speed
rpm

7,253

No-Load current≤125%
mA

28.2

Max.continuous power
W

3.20

Speed constant
rpm/V

892

Mechanical time constant
ms

6.0

Torque constant
mNm/A

10.63

Rotor inetia
gcm2

3.15

Starting current
mA

4,091

Inductance

mH


Stall torque
mNm

43.50

Weight

g

61

Dimensions(mm)
 

Characteristic curve diagram
 
Note
 
Axial play (measured at 4N axial force)




≤0.15mm
Max. sleeve bearing loads








Axial (dynamic)





1.0N

Radial (4 mm from jamming ring)





2.7N

Force for press-fits (static)





80N
Max. radial play sleeve bearing





0.02 mm
Ambient temperature range





-20+65
Max. rotor temperature





+85
Weight of motor





61g
Options:gearbox and ball bearings







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