19xx SERIES BRUSHLESS MOTORS
51mm OD 1900 series innrunner BLDC motors feature a large diameter rotor in a fixed enclosure. The high diameter to length bias achieves the high torque advantages of an outrunner with the mounting and operational advantages of a non-rotating enclosure.
- Inrunner construction
- High speed operation – 35,000 RPM
- 8 poles / 24 slots
- 5, 6, or 8mm shafts
Options:
- Finned case
- Waterproof case
- Internal fan for better cooling
May be mated with P32 gearboxes for very high power-to-weight drives.
Neumotors 1900 series brushless motors are manufactured in a wide variety of lengths and winds to provide increasing power ratings at a number of voltages. Select the desired motor power range from the table below.
19xx SERIES LENGTH AND POWER RANGE
Length Continuous
Watts* Max
Watts* Physical
Length Weight No Fan /
SMOOTH No Fan /
FINNED FAN /
FINNED 1902 300 600 39mm 57.5mm 57.5mm 124.5g 1905 600 1,200 44.65mm 57.5mm 57.5mm 181g 1907 900 1,800 51mm 57.5mm 57.5mm 235g 1910 1,200 2,400 57.5mm 57.5mm 72.2mm 283g 1912 1,500 3,000 64mm 72.2mm 72.2mm 340g 1915 1,800 3,600 70.2mm 72.2mm 78.5mm 396g 1917 2,100 4,200 82.9mm 78.5mm 85.5mm 453g 1920 2,500 5,000 82.9mm 85.5mm 90.5mm 510g 1924 3,000 6,000 93mm 100.5mm 100.5mm 623g 1930 3,500 7,000 108.5mm 792g
| Length | Continuous Watts* | Max Watts* | Physical Length | Weight | ||
| No Fan / SMOOTH | No Fan / FINNED | FAN / FINNED | ||||
| 1902 | 300 | 600 | 39mm | 57.5mm | 57.5mm | 124.5g |
| 1905 | 600 | 1,200 | 44.65mm | 57.5mm | 57.5mm | 181g |
| 1907 | 900 | 1,800 | 51mm | 57.5mm | 57.5mm | 235g |
| 1910 | 1,200 | 2,400 | 57.5mm | 57.5mm | 72.2mm | 283g |
| 1912 | 1,500 | 3,000 | 64mm | 72.2mm | 72.2mm | 340g |
| 1915 | 1,800 | 3,600 | 70.2mm | 72.2mm | 78.5mm | 396g |
| 1917 | 2,100 | 4,200 | 82.9mm | 78.5mm | 85.5mm | 453g |
| 1920 | 2,500 | 5,000 | 82.9mm | 85.5mm | 90.5mm | 510g |
| 1924 | 3,000 | 6,000 | 93mm | 100.5mm | 100.5mm | 623g |
| 1930 | 3,500 | 7,000 | 108.5mm | 792g |
See the tables below for kv and torque particulars.
1902: 300-600 watt class BLDC motors
| Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |
| 1902/4Y | 1,000 | 0.09 | 0.60 | 9.568 | 1.355 | 35 | 17 |
| 1902/3.5Y | 1,175 | 0.063 | 0.50 | 8.143 | 1.153 | 30 | 20 |
| 1902/3Y | 1,350 | 0.048 | 0.70 | 7.088 | 1.004 | 26 | 23 |
| 1902/2.5Y | 1,650 | 0.032 | 1.00 | 5.799 | 0.821 | 21 | 28 |
| 1902/2Y | 2,035 | 0.023 | 1.30 | 4.702 | 0.666 | 17 | 35 |
| 1902/1.5Y | 2,800 | 0.012 | 1.70 | 3.417 | 0.484 | 13 | 48 |
1905: 600-1,200 watt class BLDC motors
| Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |
| 1905/3Y | 720 | 0.07 | 0.60 | 13.289 | 1.882 | 49 | 25 |
| 1905/2.5Y | 865 | 0.035 | 0.70 | 11.062 | 1.566 | 40 | 30 |
| 1905/2Y | 1,025 | 0.025 | 0.90 | 9.335 | 1.322 | 34 | 35 |
| 1905/1.5Y | 1,350 | 0.019 | 1.40 | 7.088 | 1.004 | 26 | 46 |
| 1905/1Y | 2,060 | 0.008 | 2.10 | 4.645 | 0.658 | 17 | 71 |
1907: 900-1,800 watt class BLDC motors
| Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |
| 1907/3Y | 480 | 0.075 | 0.50 | 19.934 | 2.823 | 73 | 25 |
| 1907/2.5Y | 580 | 0.04 | 0.70 | 16.497 | 2.336 | 60 | 30 |
| 1907/2Y | 675 | 0.03 | 0.70 | 14.175 | 2.007 | 52 | 35 |
| 1907/1.5Y | 915 | 0.019 | 1.10 | 10.457 | 1.481 | 38 | 47 |
| 1907/1Y | 1,400 | 0.012 | 1.40 | 6.835 | 0.968 | 25 | 72 |
1910: 1,200-2,400 watt class BLDC motors
| Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |
| 1910/3Y | 360 | 0.088 | 0.50 | 26.579 | 3.764 | 97 | 25 |
| 1910/2.5Y | 432 | 0.061 | 0.70 | 22.149 | 3.137 | 81 | 30 |
| 1910/2Y | 520 | 0.082 | 0.60 | 18.401 | 2.606 | 67 | 36 |
| 1910/1.5Y | 680 | 0.02 | 0.08 | 14.071 | 1.993 | 51 | 47 |
| 1910/1Y | 1,050 | 0.0098 | 1.70 | 9.113 | 1.29 | 33 | 72 |
1912: 1,500-3,000 watt class BLDC motors
| Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |
| 1912/3Y | 270 | 0.095 | 0.50 | 35.439 | 5.019 | 130 | 23 |
| 1912/2.5Y | 324 | 0.0163 | 0.58 | 29.532 | 4.182 | 108 | 28 |
| 1912/2Y | 405 | 0.042 | 0.70 | 23.626 | 3.346 | 86 | 35 |
| 1912/1.5Y | 532 | 0.027 | 0.90 | 17.986 | 2.547 | 66 | 46 |
| 1912/1Y | 825 | 0.011 | 1.50 | 11.598 | 1.642 | 42 | 71 |
1915: 1,800-3,700 watt class BLDC motors
| Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |
| 1915/3Y | 225 | 0.1 | 0.34 | 42.526 | 6.022 | 156 | 23 |
| 1915/2.5Y | 270 | 0.07 | 0.50 | 35.439 | 5.019 | 130 | 28 |
| 1915/2Y | 360 | 0.05 | 0.60 | 26.579 | 3.764 | 97 | 37 |
| 1915/1.5Y | 450 | 0.027 | 0.80 | 21.263 | 3.011 | 78 | 46 |
| 1915/1Y | 684 | 0.012 | 1.50 | 13.989 | 1.981 | 51 | 70 |
1917: 2,100-4,200 watt class BLDC motors
| Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |
| 1917/3Y | 200 | 0.135 | 0.30 | 47.842 | 6.775 | 175 | 23 |
| 1917/2.5Y | 240 | 0.094 | 0.50 | 39.868 | 5.646 | 146 | 28 |
| 1917/2Y | 300 | 0.06 | 0.60 | 31.895 | 4.517 | 117 | 35 |
| 1917/1.5Y | 400 | 0.032 | 1.10 | 23.921 | 3.388 | 88 | 47 |
| 1917/1Y | 590 | 0.015 | 2.40 | 16.218 | 2.297 | 59 | 69 |
1920: 2,500-5,000 watt class BLDC motors
| Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |
| 1920/3Y | 170 | 0.141 | 0.50 | 56.285 | 7.971 | 206 | 24 |
| 1920/2.5Y | 200 | 0.098 | 0.60 | 47.842 | 6.775 | 175 | 29 |
| 1920/2Y | 255 | 0.063 | 0.80 | 37.523 | 5.314 | 137 | 36 |
| 1920/1.5Y | 340 | 0.035 | 1.10 | 28.142 | 3.985 | 103 | 49 |
| 1920/1Y | 510 | 0.016 | 1.00 | 18.762 | 2.657 | 69 | 73 |
1924: 3,000-6,000 watt class BLDC motors
| Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |
| 1924/3Y | 136 | 0.165 | 0.50 | 70.356 | 9.963 | 257 | 23 |
| 1924/2.5Y | 165 | 0.114 | 0.60 | 57.99 | 8.212 | 212 | 28 |
| 1924/2Y | 200 | 0.073 | 0.80 | 47.842 | 6.775 | 175 | 34 |
| 1924/1.5Y | 275 | 0.035 | 1.00 | 34.794 | 4.927 | 127 | 47 |
| 1924/1Y | 400 | 0.018 | 1.50 | 23.921 | 3.388 | 88 | 69 |
1930: 3,500-7,000 watt class BLDC motors
| Motor | RPMs per Volt (KV) | Rm (Ohms) | Io @ 10V | Torque Constant (mNm/A) | Torque Constant (inOz/A) | Max Volts | Max Amps |
| 1930/3Y | 112 | 0.2 | 0.5 | 85.432 | 12.098 | 312 | 22 |
| 1930/2.5Y | 135 | 0.14 | 0.6 | 70.877 | 10.037 | 260 | 27 |
| 1930/2Y | 180 | 0.1 | 0.9 | 53.158 | 7.528 | 194 | 36 |
| 1930/1.5Y | 225 | 0.054 | 1.1 | 42.526 | 6.022 | 155 | 45 |
| 1930/1Y | 342 | 0.024 | 1.6 | 27.978 | 3.962 | 102 | 68 |
POWER RATINGS (Watts):
- Continuous rating is the power the motor can deliver while maintaining the external housing temperatures below 100C.
- MAX power rating is the power the motor can deliver beginning with motor at a temp of 20C until it reaches it’s limit temperature of 100C.
- The ratings are therefore dependent on a number of variables including air flow, ambient air temperature, contact cooling etc.
MAX VOLTAGE
Limited by kv (RPMs per volt) times the applied voltage. Max voltage must be kept below the voltage which will spin the motor over max rpm for the motor series.
MAX AMPERAGE
See power ratings above.
MTBF RATINGS:
When used within the constraints described above, BLDC motors’ primary “wear” item(s) are the bearings supporting the shaft. Bearing life is inversely affected by speed, temperature, and radial and axial loads. While an MTBF figure can be generated, it would be rendered invalid by excursions beyond prescribed temperatures or load limits – such as prop strikes, or side loads. MTBF must be determined on a case by case basis, and even then, it would be subject to numerous exceptions.
COMPONENT SPECIFICATIONS
- Winding temperature: — 180C
- Magnet grade: – 180C UH grade
- Bearings: Japanese SPB bearings