E bike hub wiring net

newmanoid979

Finding my (electric) wheels
Jun 11, 2023
21
0
Good Day
Just a query is the string net that keeps the stator motor wires in place a special kind of thread if so where would i obtain it or is it just normal string also what would be the best glue to hold this net and the Hall Sensors in place

Many thanks

Bill
 

Sturmey

Esteemed Pedelecer
Jan 26, 2018
648
354
68
Ireland
I have one motor that still works ok but the windings are darker/scorched on the top and the lacing twine/thread is burnt and broken. It doesn't seem to be a problem as I think the windings are glued in ( I think epoxy) after lacing. I think It can get very hot inside a motor.
But I'm no expert. Endless sphere has some detailed threads e.g.
 
Last edited:

Saracen

Esteemed Pedelecer
Aug 24, 2023
532
61
Why are stator windings insulated?



STATOR WINDING INSULATION LAB – Powertech Labs


A reliable stator winding insulation system is essential to ensure that generators and motors can provide long-term service under various operating conditions.
 

saneagle

Esteemed Pedelecer
Oct 10, 2010
7,005
3,241
Telford
Good Day
Just a query is the string net that keeps the stator motor wires in place a special kind of thread if so where would i obtain it or is it just normal string also what would be the best glue to hold this net and the Hall Sensors in place

Many thanks

Bill
If you have to cut the thread and pull off a bit of wire to resolder the hall sensors, motor cable, or whatever, you can just epoxy it back down afterwards. Hall sensor wires can be epoxied. Use a bit of plastic from a milk bottle (HDPE) with a weight on it to hold anything down while the epoxy sets. HDPE won't stick.

Generally speaking in the context of an ebike motor. you can use any thread that doesn't melt when it gets hot. You can use epoxy to hold the wires in place with or without the thread. You only need thread when there's something nearby that loose turns of the coil or errant wires might otherwise rub on like the hub or clutch.

The manufacturers sometimes varnish or epoxy the coils after assembly and tying, so the thread isn't really needed after that. it's just to hold everything in place until the glue can do it.