CROMOTOR V2 - ALUMINIUM DREAM
- Continuous power : 6000W
- Weight : 10.5kg
- Stator manufactured from aluminium,
- Additional silicon steel and copper compare to previous versions, providing better heat dissipation,
- Higher efficiency on low speeds and higher speed
- Better cooling at higher speeds.
The major changes from the V1 motor are as follows:
The minimum recommended rear swing arm dropouts is 145 mm. Very good mechanical skills are needed for this motor to be mounted on 140 mm dropouts. It’s possible, but strongly NOT recommended and you might not be able to fit a disc brake.
The weight of the previous motor was 22.4lbs (10.18kg), the new version is a little heavier at 24 lbs (11kg).
This version has a different stator. The old version was a stamped steel stator and these now use a cast aluminum stator. The stator lamination’s are made with a high quality silicon steel and also have a little more copper fill. This all translates into a more efficient cooler running motor.
Continuous power handling: 5000W (please read the following note about wattage ratings), if you stall the motor at zero RPM and put 4000W into it of course you will melt it, even 1000W could would damage it if left stalled for long enough. Your wheel size plays a large factor in this, the larger the wheel the less efficient the motor, on flat surfaces this is generally a non issue, but if you choose to climb steep hills with a 29″ wheel using this motor I suggest you carefully monitor the motor temp and also the controller temperature. Another note about using large wheel/tire diameters is to watch your power. This motor produces very large amounts of torque and a 28-30″ diameter tire is a very long lever. This can produce a lot of stress on the axle. If you intend to build what amounts to more of a motorcycle or moped than a bicycle I suggest you run a tire with a diameter no larger than 22″ to keep mechanical and electrical stresses within reason.
The same general rules that apply to all hub motors still apply to this one and must be observed. This motor is capable of surviving many situations where other motors would not, but caution must still be used.
kV measured the same as the previous version 9.3kV (9.3 RPM per 1 volt)
Inductance appears to be slightly higher than the previous version and measured it at 145uH vs the previous versions 120uH
Hall sensors are spaced at 120 degrees
Phase wires are 11 AWG
INFO ON PRICING AND DISTRIBUTING IS AVAILABLE UPON REQUEST
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dimensions comparison of popular 9c motor with Cromotor v2
OLD CROMOTOR V1
CROMOTOR V1 PARTS
strong duty axle
CROMOTOR V1 VS CROMOTOR V2
aluminum stator in our new version provides excellent thermal disposition
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