Reliable source for electric motor parts?
In trying to order parts for an electric powered glider, I have been frustrated in locating the correct parts. The glider was originally for a brushed motor w/NiCads and I am updating the power system to brushless w/LiPo. The problem is that with the motor I need the shaft sizes vary from 2 mm to 2.7 mm to 3 mm to 3.17mm and the folding prop adapter choices are limited. When matching prop diameter/pitch 9x4 and colett sizes to the 3mm I need I can only find sources at Hobby King that define the parts well enough to match my needs and HK is Back Ordered on everything and no hope of ever getting any in. Is there any other source of individual parts such as these? I have tried Horizon Hobby, Tower Hobbies, Hobby People but no one has the parts I need.