

 Outrunner construction
 12,000 max rpm
 22 poles / 24 slots
 8mm shaft

Neumotors 4600 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.
Length  Continuous Watts*  Max Watts*  Physical Length  Weight 
4610  500  1,000  1.00"  134g 
4613  500  1,500  1.20"  209g 
4619  750  2,000  1.40"  272g 
4625  1,250  2,500  1.70"  368g 
4632  1,375  2,750  2.00"  390g 
4638  1,500  3,000  2.20"  445g 
4613: 5001,000 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 
4613/5D  575  0.028  1.20  16.641  2.357  21  48 
4613/4D  720  0.017  1.60  13.289  1.882  17  60 
4619: 7501,500 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 
4619/4D  495  0.021  1.40  19.33  2.737  24  62 
4619/3D  660  0.013  2.00  14.498  2.053  18  83 
4625: 1,0002,000 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 
4625/4D  400  0.026  1.20  23.921  3.388  30  67 
4625/3D  540  0.016  1.80  17.719  2.509  22  90 
4632: 1,3752,750 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 
4632/476  476  0.015  2.0  
4632/340  340  0.025  1.30 
4638: 1,5003,000 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 
4638/405  405  0.017  1.8  
4638/289  289  0.029  1.20 
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