shinyballs
1 kW
Created for Bafang PMGR related discussion only. Let me know if findings need changes. Post what you love and also hate about this motor. Will be updated as more data is received.
Speediest model: ? calling seller Knuckles
Torquest model : ? seller, do you know??
Motor specs, pics - (link upated, thx voicecoils)
http://endless-sphere.com/forums/viewtopic.php?f=3&t=4892&start=0#p72825
Compatible controllers:
Infineon Controller
Shenzhen 72v 30Amp - with 24mhz resomator mod
Kelly BLDC 72v - with current limited to 30Amp thru software
Crystalyte analog 72v 35Amp
Crystalyte analog 72v 20Amp - some problems
Features:
front or rear mounted
Can use Regen?
low cost, "for now"
Known issues, limitations
Should not be run over 72v, 30Amps at ___% efficiency
Hollow shaft on left side, not suited for heavy loads, max load limited to _____lbs
Must have parts/upgrades
disk brake mounting holes
replacement gears (nylon, steel)
other gear ratio, if higher rpm is desired
Road Test results:
over 500 miles -
Nogwin: I got to say this is the most efficient motor I have even owned. It has ZERO wheel resistance, which means pedaling 20mph on the flats is not too hard... It pulls real hard at 66V (NiMH) and performs similar to a 408 at 72V or a 503 at 36V.
1000 miles -
3000 miles -
More test results:
Voicecoils: I tried some more no-load testing with my power supply with the 36v 26" Bafang PMGR front hub motor. Then I used excel to create a linear trendline of speeds above the max voltage of my power supply (54.8v). I assumed that road speed (26" wheel) would be 20% lower than no load speeds:
Speediest model: ? calling seller Knuckles
Torquest model : ? seller, do you know??
Motor specs, pics - (link upated, thx voicecoils)
http://endless-sphere.com/forums/viewtopic.php?f=3&t=4892&start=0#p72825
Compatible controllers:
Infineon Controller
Shenzhen 72v 30Amp - with 24mhz resomator mod
Kelly BLDC 72v - with current limited to 30Amp thru software
Crystalyte analog 72v 35Amp
Crystalyte analog 72v 20Amp - some problems
Features:
front or rear mounted
Can use Regen?
low cost, "for now"
Known issues, limitations
Should not be run over 72v, 30Amps at ___% efficiency
Hollow shaft on left side, not suited for heavy loads, max load limited to _____lbs
Must have parts/upgrades
disk brake mounting holes
replacement gears (nylon, steel)
other gear ratio, if higher rpm is desired
Road Test results:
over 500 miles -
Nogwin: I got to say this is the most efficient motor I have even owned. It has ZERO wheel resistance, which means pedaling 20mph on the flats is not too hard... It pulls real hard at 66V (NiMH) and performs similar to a 408 at 72V or a 503 at 36V.
1000 miles -
3000 miles -
More test results:
Voicecoils: I tried some more no-load testing with my power supply with the 36v 26" Bafang PMGR front hub motor. Then I used excel to create a linear trendline of speeds above the max voltage of my power supply (54.8v). I assumed that road speed (26" wheel) would be 20% lower than no load speeds: