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8800 SERIES BLDC MOTORS

New June 2023.

Specifications coming soon. 

Neumotors multirotor motor 88xx series

88XX SERIES QUICK LOOK:

 

  • Outrunner construction optimised for lightweight durability
  • 102mm OD
  • up to 16,000 watts max power
  • 10,000 max RPM
  • 22 poles / 24 slots
  • 10mm centering shaft. Multiple prop mounting bolt patterns. 

Neumotors’ 88xx series outrunners are perfect for many UAV, industrial, and commercial applications where medical-grade performance and reliability are expected. The modular motor shaft mounting allows for highly flexible front or rear mounting drive fittings.

The 22 pole/24 slot design is optimized for the 4,000 to 10,000 RPM range.  

OPTIONS:

  • Custom shaft and mounting options
  • US component sourcing and assembly available

88XX SERIES LENGTHS & POWER RANGES

LENGTH
CONT. WATTS
MAX WATTS
MAX TORQUE
PHYSICAL LENGTH
WEIGHT
4,000
8,000
7.75Nm


5,500
11,000
10.8Nm


8,000
16,000
15.5Nm


8830: 8,000 watt brushless motors

Motor RPMs
per Volt
(KV)
Rm (Ohms) Io
@
10V
Torque
Constant
(mNm/A)
Torque
Constant
(inOz/A)
Max
Volts
Max
Amps
8830/90/7 7 5.123 0.113 1366.915 193.571 1429 11
8830/95/7 7 5.706 0.107 1366.915 193.571 1429 10
8830/100/7 7 6.320 0.102 1366.915 193.571 1429 10
8830/80/8 8 4.051 0.127 1196.05 169.375 1250 12
8830/85/8 8 4.572 0.119 1196.05 169.375 1250 11
8830/70/9 9 3.105 0.145 1063.156 150.556 1111 14
8830/75/9 9 3.563 0.135 1063.156 150.556 1111 13
8830/65/10 10 2.679 0.156 956.84 135.5 1000 15
8830/60/11 11 2.285 0.169 869.855 123.182 909 16
8830/55/12 12 1.922 0.185 797.367 112.917 833 18
8830/50/13 13 1.590 0.203 736.031 104.231 769 19
8830/45/15 15 1.290 0.226 637.894 90.333 667 22
8830/40/16 16 1.021 0.254 598.025 84.688 625 24
8830/38/17 17 0.922 0.267 562.847 79.706 588 26
8830/36/18 18 0.828 0.282 531.578 75.278 556 27
8830/34/19 19 0.740 0.299 503.6 71.316 526 29
8830/32/20 20 0.656 0.317 478.42 67.75 500 30
8830/30/22 22 0.577 0.338 434.927 61.591 455 32
8830/28/23 23 0.504 0.363 416.018 58.913 435 35
8830/26/25 25 0.435 0.390 382.736 54.2 400 37
8830/24/27 27 0.371 0.423 354.385 50.185 370 40
8830/22/30 30 0.313 0.461 318.947 45.167 333 44
8830/20/33 33 0.259 0.508 289.952 41.061 303 49
8830/19/34 34 0.234 0.534 281.424 39.853 294 51
8830/18/36 36 0.211 0.564 265.789 37.639 278 54
8830/17/38 38 0.188 0.597 251.8 35.658 263 57
8830/16/41 41 0.167 0.634 233.376 33.049 244 61
8830/15/44 44 0.147 0.677 217.464 30.795 227 65
8830/14/47 47 0.129 0.725 203.583 28.83 213 69
8830/13/50 50 0.111 0.781 191.368 27.1 200 75
8830/12/54 54 0.095 0.846 177.193 25.093 185 81
8830/11/59 59 0.080 0.923 162.176 22.966 169 88
8830/10/65 65 0.067 1.015 147.206 20.846 154 97
8830/9.5/69 69 0.060 1.068 138.673 19.638 145 102
8830/9/73 73 0.054 1.128 131.074 18.562 137 108
8830/8.5/77 77 0.049 1.194 124.265 17.597 130 114
8830/8/82 82 0.043 1.269 116.688 16.524 122 122
8830/7.5/87 87 0.038 1.353 109.982 15.575 115 130
8830/7/93 93 0.034 1.450 102.886 14.57 108 139
8830/6.5/101 101 0.029 1.562 94.737 13.416 99 150
8830/6/109 109 0.025 1.692 87.784 12.431 92 162
8830/5.5/119 119 0.021 1.845 80.407 11.387 84 177
8830/5/131 131 0.018 2.030 73.041 10.344 76 194
8830/4.5/145 145 0.015 2.256 65.989 9.345 69 216
8830/4/163 163 0.012 2.538 58.702 8.313 61 243
8830/3.5/187 187 0.009 2.900 51.168 7.246 53 278
8830/3/218 218 0.007 3.383 43.892 6.216 46 324
8830/2.5/262 262 0.003 4.060 36.521 5.172 38 486
8830/2/327 327 0.003 5.075 29.261 4.144 31 486
8830/1.5/436 436 0.002 6.767 21.946 3.108 23 648
8830/1/654 654 0.001 10.150 14.631 2.072 15 972
8830/0.5/1308 1308 0.000 20.300 7.315 1.036 8 1944

8842: 11,000 watt brushless motors

Motor RPMs
per Volt
(KV)
Rm (Ohms) Io
@
10V
Torque
Constant
(mNm/A)
Torque
Constant
(inOz/A)
Max
Volts
Max
Amps
8842/100/5 5 8.431 0.102 1913.681 271 2000 10
8842/95/5 5 7.611 0.107 1913.681 271 2000 10
8842/85/5 5 6.096 0.119 1913.681 271 2000 11
8842/90/5 5 6.833 0.113 1913.681 271 2000 11
8842/75/6 6 4.750 0.135 1594.734 225.833 1667 13
8842/80/6 6 5.402 0.127 1594.734 225.833 1667 12
8842/65/7 7 3.571 0.156 1366.915 193.571 1429 15
8842/70/7 7 4.140 0.145 1366.915 193.571 1429 14
8842/55/8 8 2.560 0.185 1196.05 169.375 1250 18
8842/60/8 8 3.045 0.169 1196.05 169.375 1250 16
8842/50/9 9 2.118 0.203 1063.156 150.556 1111 19
8842/45/10 10 1.717 0.226 956.84 135.5 1000 22
8842/38/12 12 1.227 0.267 797.367 112.917 833 26
8842/40/12 12 1.359 0.254 797.367 112.917 833 24
8842/36/13 13 1.102 0.282 736.031 104.231 769 27
8842/34/14 14 0.984 0.299 683.457 96.786 714 29
8842/32/15 15 0.872 0.317 637.894 90.333 667 30
8842/30/16 16 0.767 0.338 598.025 84.688 625 32
8842/28/17 17 0.669 0.363 562.847 79.706 588 35
8842/26/18 18 0.578 0.390 531.578 75.278 556 37
8842/24/19 19 0.493 0.423 503.6 71.316 526 40
8842/22/21 21 0.415 0.461 455.638 64.524 476 44
8842/20/23 23 0.344 0.508 416.018 58.913 435 49
8842/19/25 25 0.311 0.534 382.736 54.2 400 51
8842/18/26 26 0.279 0.564 368.015 52.115 385 54
8842/17/27 27 0.249 0.597 354.385 50.185 370 57
8842/16/29 29 0.221 0.634 329.945 46.724 345 61
8842/15/31 31 0.195 0.677 308.658 43.71 323 65
8842/14/33 33 0.170 0.725 289.952 41.061 303 69
8842/13/36 36 0.147 0.781 265.789 37.639 278 75
8842/12/39 39 0.126 0.846 245.344 34.744 256 81
8842/11/42 42 0.106 0.923 227.819 32.262 238 88
8842/10/47 47 0.088 1.015 203.583 28.83 213 97
8842/9.5/49 49 0.080 1.068 195.274 27.653 204 102
8842/9/52 52 0.072 1.128 184.008 26.058 192 108
8842/8.5/55 55 0.064 1.194 173.971 24.636 182 114
8842/8/58 58 0.057 1.269 164.972 23.362 172 122
8842/7.5/62 62 0.050 1.353 154.329 21.855 161 130
8842/7/67 67 0.044 1.450 142.812 20.224 149 139
8842/6.5/72 72 0.038 1.562 132.894 18.819 139 150
8842/6/78 78 0.033 1.692 122.672 17.372 128 162
8842/5.5/85 85 0.028 1.845 112.569 15.941 118 177
8842/5/93 93 0.023 2.030 102.886 14.57 108 194
8842/4.5/104 104 0.019 2.256 92.004 13.029 96 216
8842/4/117 117 0.015 2.538 81.781 11.581 85 243
8842/3.5/133 133 0.012 2.900 71.943 10.188 75 278
8842/3/156 156 0.009 3.383 61.336 8.686 64 324
8842/2.5/187 187 0.004 4.060 51.168 7.246 53 486
8842/2/234 234 0.004 5.075 40.891 5.791 43 486
8842/1.5/311 311 0.002 6.767 30.767 4.357 32 648
8842/1/467 467 0.001 10.150 20.489 2.901 21 972
8842/0.5/934 934 0.000 20.300 10.245 1.451 11 1944

8860: 16,000 watt brushless motors

LEAD TIME

Neutronics assembles motors to order.  Most motors in this series are ready to ship from our San Diego office within 1-2 weeks.  Lead time varies with quantity, customizations, and supply chain considerations.  Rush orders may be available.

Please email us to confirm delivery estimates for your motor needs. info@neutronics.com

*Prices:

Prices subject to change without warning due to possible imposition of tarriffs. 

MOTOR KV:

The motor sizes and KVs listed above are the most common for this particular motor range. Custom sizes and  KV (RPMs per volt) are usually available.  Please contact us for more details if you don't immediately see the solution you are seeking in the tables above.

KV is the term used in the brushless motor workspace to specify the number of rotations per minute that a motor will turn for each volt applied to the motor/ESC with no load on the motor.

Neutronics specifications are +/- 5%.

For a more complete discussion of KV, please go to our KV FAQ page.  

MOTOR Io @ 10V:

The no load current of a brushless motor is defined as the current the motor draws, with no load applied, at a specific voltage. The no load current is measured in Amps and denoted “Io.”  Neumotors measures Io amperage at 10v DC input to speed controller. 

MOTOR RESISTANCE:

The resistance of a brushless motor is the leg to leg resistance of the stator, measured in ohms. The value listed in the motor's data sheet is typically the resistance at room temperature (22°C).

MOTOR RESISTANCE:

The resistance of a brushless motor is the leg to leg resistance of the stator, measured in ohms. The value listed in the motor's data sheet is typically the resistance at room temperature (22°C).

POWER RATINGS (Watts):

  • Continuous rating is the power the motor can deliver while maintaining the external housing temperatures below 100C.
  • MAX power is achieved at max RPMs and voltage, not at a partial throttle or reduced voltage.
  • 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. Each application will present different variables.  

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.

MAX VOLTAGE

Max voltage is limited by the following concerns:

1. Mechanical redline.  The motor should not be driven faster than the mechanical limits of the motor which is determined as 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.

2. In some cases, usually where the Kv is very low, voltage times Kv is under the mechanical redline.  In these cases, the insulation of the winding wire must be considered.  Our standard winding is safe up to 130V.  We hi-pot test all standard-wind motors at 300V.   We offer a high voltage winding for use up to 450 volts.  We can also build motors for voltages beyond 450 volts, please contact us for more information.

MAX AMPERAGE

See power ratings above.

COMPONENT SPECIFICATIONS

  • Winding temperature:  -- 180C
  • Magnet grade: - 180C UH grade
  • Bearings:  Japanese SPB bearings

CONTROLLER SETTINGS: TIMING

  • APD controllers automatically adjust timing for optimum efficiency
  • Recommend low timing for controllers that require configuration

POLE COUNT vs. POLE PAIRS

  • Neumotors lists the number of poles in a motor rotor. Example: N S N S would be a four pole motor.
  • Some ESC manufacturers use the term "pole pairs" which refers to the number of N and S pairs.  Example: N S N S would be a 2 pole-pair motor.

Neumotors Naming Convention Details

NOTE: Innrunners use imperial dimensions (inches), outrunners use metric dimensions (mm).

Using the 1530/.75D (2640 KV) as our example:  1530/.75D (2640 KV) should be read as 15 | 30 | .75 | D which runs at 2,640 RPMS per volt.


1530/.75D (2640 KV)

The last part of the code - the Kv, is the voltage constant.* It represents the number of RPMs the motor will spin for each volt applied to the motor by the speed control.  A 1,000 KV motor should spin at 10,000 RPMs when 10 volts are applied to an unloaded motor (10 x 1,000 = 10,000).

The Kv of a particular motor size is determined by the number of turns of wire around the stator teeth.  The length of the motor and the type of wire termination inside the motor also determine the motor Kv.

*Kv in this context does not mean kilovolt.  We aren't working with kilovolts here!!


1530/.75D (2640 KV)

The first two digits are the motor's internal diameter in inches. 15 = 1.5" inches - so all 15 series are the same internal diameter.


1530/.75D (2640 KV)

The second two digits represent the motor's internal length, the stator stack, specifically. 30 is 3.0 inches - so a 1530 is 3 inches long inside and a 1539 is 3.9 inches long inside the case. Longer motors have more power capability and more weight.


1530/.75D (2640 KV)

The 3rd set of digits is the number of times the internal wires are wrapped around the stator teeth. 1530/.75D has .75 wraps of the wire inside the motor around the steel teeth of the stator.


1530/.75D (2640 KV)

The final letter refers to the internal connection of the 3 motor wires. D = Delta, the Greek letter for D that looks like a triangle. The other option is Y, and the Y wind looks like a letter Y on a wiring diagram.  A Delta motor will spin 1.8 times the Kv of a Y motor with the same number of turns.  Change the turns in a Y motor and it will spin just as fast as a Delta with nearly identical performance.

NOTE: This system applies to the NEUMOTORS INRUNNERS.  OUTRUNNERS are the same format, but they are in metric units (MM).