Disclaimer:
This post is @glyphiks fault
So I got my Reacher motors and as the one or other might know, after some motor issues some years ago I usually take apart new motors before I install them.
That’s what I did this time as well and i found some good and some not so good things.
But lets start with a small comparison to my APS 6384 170kV motors (Reacher 6388 173kV)
The weight:
The size:
The good things:
They are true battle hardened from factory.
Not the „but we used epoxy to glue the magnets in“ battle hardened that you usually get.
The shaft is locked with some grub screw thingy in the back so that he can’t rotate.
Not sure why they use a circle clip at the end of the can thou.
They have four small bearings in the stator (2 in the front, 2 in the back). Usually we have 3 bearings in the stator, or 3 small and one big one. I never had problems with just 3, but worth to mention.
They are also very easy to disassemble.
I think the most easy from all the motors I disassembled till now.
Copper fill on the stator is ok. Would say similar to the APS motors.
The windings are a bit more clean laid out and I couldn’t find any lose windings on the two motors I have.
The not so good things:
The windings are coming out of the motor for 4-5cm before they got soldered to the AWG wire. That makes the phase wires stiff in the place they might need to bend. This depends for sure on how you install the motors.
The M4 holes which have been drilled and tapped haven’t been cleaned up.
That shouldn’t be an issue, but the small parts could break up if you screw in the bolts and o do not like sharp metal parts in my motors.
Also one of the threads of M4 mounting holes is partially on the edge of another hole.
Similar thing on the end of the bell. The cnc cut outs are very bad cut and not cleaned up.
I‘m in general not a big fan of step down shafts, but in some cases they do make sense for sure. What don’t understand is why the step down here is not a corner but more like a cone.
One last thing and that I would recommend to everybody who owns a Reacher motor,
Check the grub screws at the end of the shaft.
I could remove mine without any problems.
It also seems like they sometimes do not use loctite on those screws at all.
That means they could come lose at any time.
The conclusion
The first impression is still good. The not so good parts are mostly easy to fix or no real problem for one or the other.
Easy to open motor and I’m so happy I do not need to battle harden them.
Looking forward to the vesc tool motor detection results and how fast they do get hot in use.