Products
Coreless DC Motor
- Model:20SYK5120.A
- Connection:with wires
- Brushes:precious metal brushes
- Bearings:sleeve bearing
- Datasheet:PDF 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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