Effective Coreless Servo Motor Spec Sheet
Coreless Servo Motor Typical Applications: Steering Gear, Intelligent Robot
Motor model |
NFP-EM1625RG-A |
NFP-EM1625RG-B |
Nominal voltage |
6V DC |
12V DC |
No-load speed |
12,000rpm |
12,000rpm |
No-load current |
0.045mA |
0.025mA |
Nominal speed |
10,800rpm |
10,320rpm |
Nominal torque |
1.5mNm |
1.5mNm |
Nominal current |
0.36A |
0.18A |
Stall torque |
15mNm |
10.9mNm |
Stall current |
3.16A |
1.15A |
Terminal resistance |
1.9Ω |
10.44Ω |
Torque constant |
4.68mNm/A |
9.36mNm/A |
Speed constant |
2,000rpm/V |
1,000rpm/V |
Coreless Servo Motor Terminal Connection Data Sheet
Connection |
|
Terminal A: En 60603-13/DIN-41651 Pitch 2.54mm6pin |
|
Flat band cable: 6pin UL2651 26AWG |
|
1: Motor+ |
4: Incremental output A or I2C SCL |
2: VCC(DC 3.3~5V) |
5: GND |
3: Incremental output A or I2C SDA |
6: Motor- |
Coreless Servo Motor Stage Data Sheet
Stage |
NFP-EM1625RG-A |
NFP-EM1625RG-B |
NFP-EM1625RG-C |
NFP-EM1625RG-D |
NFP-EM1625RG-E |
Reduction ration |
3.79 |
14.36; 16.34 |
54.42; 70.48 |
206.21; 267.06 |
1012.03; 1151.72 |
|
4.31 |
18.06; 21.89 |
80.2; 94.42 |
303.92; 407.18 |
1310.68; 1491.58 |
|
5.08 |
|
111.16; 130.86 |
479.36; 664.36 |
1596.2; 2067.23 |
|
|
|
|
|
2433.66 |
Rate torque |
0.2Nm |
0.2Nm |
0.3Nm |
0.3Nm |
0.35Nm |
Stall torque |
0.3Nm |
0.3Nm |
0.45Nm |
0.45Nm |
0.5Nm |
Max efficiency |
90% |
81% |
73% |
65% |
59% |
Length |
14.8mm |
18.4mm |
22mm |
25.6mm |
29.2mm |
No-load backlash |
1° |
1.5° |
1.5° |
2° |
2° |
Coreless Servo Motor Encoder Data Sheet
Encoder |
Basic parameters: |
Supply voltage: DC 3.3~5V |
Typical current :15mA |
Max.Mech.Speed(min-1) 50,000rpm |
Intergral Non-Linearity: ±1.5° |
Differential (ABZ) Non-Linearity: ±0.02° |
Number of pulses per revolution: 1~1024PPR |
Single -turn absolute coding: 14-bit(I2C) |
Power-Up-Time:1~3ms |
Propagation Delay: 1~5us |
Rsing Time: 1us |
Falling Time: 1us |
Storage Temperature: -55~150°C |
Operating Temperature: -40~125°C |
High Torque Coreless Servo Motor Mechanical Diagram

Durable 25mm Coreless Servo Motor Performance Curve
