I bought a couple of Hacker B20-31S motors but when they arrived they didn't have the mounting collar for the Maxon 4.4:1 gearbox.
I have searched all over the internet for a source for these collars, but can't find the right one.
The closest collar I can find is the right one for Hackers, but it's for the B40 series, and has a 19mm screw footprint.
see here
http://www.aircraft-japan.com/prodde...19ADAP&from=81
The one for the B20 series motors has a 16mm footprint.
Any help would be appreciated
Thanks, Bob Hudson