Effective Coreless Servo Motor Spec Sheet
Coreless Servo Motor Typical Applications: Steering Gear, Intelligent Robot
Motor model |
NFP-EM2643RCG-A |
NFP-EM2643RCG-B |
Nominal voltage |
12V DC |
24V DC |
No-load speed |
8,000rpm |
8,000rpm |
No-load current |
60A |
60A |
Nominal speed |
7,520rpm |
7,320rpm |
Nominal torque |
12.4mNm |
17.1mNm |
Nominal current |
0.92A |
0.65A |
Stall torque |
202.4mNm |
201.2mNm |
Stall current |
14.46A |
7.02A |
Terminal resistance |
0.83Ω |
3.42Ω |
Torque constant |
14.04mNm/A |
28.08mNm/A |
Speed constant |
667rpm/V |
333rpm/V |
Coreless Servo Motor Terminal Connection Data Sheet
Connection |
|
Terminal A: EN 60603-13/DIN-41651 Pitch 2.54mm10pin |
|
Flat band cable: 10pin UL2651 26AWG |
|
Sequence: |
|
1: N.C |
6: Channel A or I²C SDA |
2: VCC(DC 3.3~5V) |
7: Channel B- or V |
3: GND |
8: Channel B or I²C SCL |
4: MODE (VCC ABZ, GND I²C) |
9: Channel Z- or W |
5: Channel A- or U |
10: Channel Z |
Coreless Servo Motor Stage Data Sheet
Stage |
NFP-EM2643RCG-A |
NFP-EM2643RCG-B |
NFP-EM2643RCG-C |
NFP-EM2643RCG-D |
NFP-EM2643RCG-E |
Reduction ration |
3.57 |
12.76; 16 |
45.55; 51.02 |
182.22; 204.08 |
728.86; 816.33 |
|
4 |
18.4; 22 |
58.67; 64 |
262.86; 302.29 |
1024; 1029.14 |
|
5.5 |
|
73.6; 84.64 |
338.56; 404.8 |
1557.38; 1936 |
|
|
|
101.2; 121 |
465.52; 556.6 |
2286.04; 2662 |
Rate torque |
0.5Nm |
1Nm |
3Nm |
4Nm |
4Nm |
Stall torque |
0.8Nm |
2Nm |
4Nm |
5Nm |
5Nm |
Max efficiency |
90% |
81% |
73% |
65% |
59% |
Length |
26.7mm |
31.2mm |
35.7mm |
40.2mm |
44.7mm |
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: ±0.5~1° |
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 43mm Coreless Servo Motor Performance Curve
