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Coreless DC Motor
 |
- Model：28SYK4000.H
- Connection：with terminals
- Brushes：graphite brushes
- Bearings：sleeve bearing
Operating parameters（25C）
| Assigned power |
W
|
28 |
Max.efficiency |
%
|
86 |
|
| Nominal voltage |
Volt
|
30 |
Limits for continuous operating | Max.continuous current |
mA
|
1046 |
| Terminal resistance±10% |
Ohm
|
2.9 |
mNm |
mNm
|
39.01 |
|
| No-Load speed±10% |
rpm
|
7650 |
Nominal speed |
rpm
|
6876 |
|
| No-Load current≤125% |
mA
|
51 |
Max.continuous power |
W
|
28.1 |
|
| Speed constant |
rpm/V
|
255 |
Mechanical time constant |
ms
|
7.2 |
|
| Torque constant |
mNm/A
|
37.3 |
Rotor inetia |
gcm2
|
18.7 |
|
| Starting current |
mA
|
10345 |
Inductance |
mH
|
0.45 |
|
| Stall torque |
mNm
|
385.7 |
Weight |
g
|
177 |
|
Dimensions（mm）
Characteristic curve diagram
Note
| ● | Axial play (measured at 4N axial force)/轴向间隙 (沿轴向施加4N力时的间隙) |
≤0.15mm |
|||||||
| ● | Max. sleeve bearing loads/滑动轴承最大载荷 | ||||||||
| Axial (dynamic)/轴向(动态) | 1.7N | ||||||||
| Radial (4 mm from jamming ring)/径向 (卡簧外4mm) | 5.5N | ||||||||
| Force for press-fits (static)/最大允许安装力 (静态) | 80N | ||||||||
| ● | Max. radial play sleeve bearing/滑动轴承最大径向间隙 | 0.02mm | |||||||
| ● | Ambient temperature range/环境温度范围 | -20～+65℃ | |||||||
| ● | Max. rotor temperature/转子承受最高温度 | +85℃ | |||||||
| ● | Options:gearbox ,encoder and ball bearings/其它可选项：减速器、编码器和滚动轴承 | ||||||||