I am having difficulty finding nuts for this rear motor wheel, the axle is about 12mm. quite fine thread. Thanks Ron
Wheel nuts
- Thread starter tushingham2
- Start date
M12 x 1.25 Pitch A2 Stainless Flange Nuts. Multi Listing | eBay
They are M12 x 1.25 pitch.
www.ebay.co.uk
Check the thread pitch as Raboa mentions, I got titanium motor bike nuts back in 2017 still using them to this day. be aware of Zinc nuts not good imo
Why do you say that? I've never used anything else in 10 years. They're supplied as standard with all motors. They're stronger than stainless steel.
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Buy one of these and measure the thread pitch. Once done, buy the correct nut. There remains the possibility that you might ruin the threads on your axle by trying to run the incorrect nut onto it.
Every motor that I've ever seen uses the same nuts 12mm x 1.25. That includes motors that look the same as yours. Are you sure that yours are 1.00mm pitch?
In my early learning stages of installing a front hub on suspension forks, taking zinc nuts on and off repeatedly using adjustable spanners I gnarled up zinc nuts real easy, from outer wear to cross threading, so I invested in titanium nuts and found a huge difference in quality and would recommend them to all those starting out on their conversion kit journey.
One of titanium's weakpoints concerning the grade used for fasteners is its low fatigue resistance. When used in race cars and things like that, they're used as one-shot fasterners, i.e replaced if disassembled. Also. they're very prone to galling, especially if the thread is cut rather than rolled, so you'd be advised to put some lubricant on the thread before tightening. Maybe that's another reason why they're replaced rather than reused. In summary, titanium has problems that can catch out the unwaray, while as zinc plated mild steel nuts are suitable for any ham-fisted ebiker.
All the motor manufacturers supply zinc plated nuts as standard. They're on all OEM ebikes with hub-motors. I've never seen or heard of a problem with them in 11 years of working with/on ebikes. They're stronger that stainless steel. I'm not sure how they compare with titanium, but IMHO that's a completely unnecessary expense. Buy titanium to save weight or because they look nice.
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I have sort of learnt something today, thanks for adding that background info, I do add a tad of lithium grease.
I would assume Galling is something you would notice if it happens even after googling the word I am still not overly clear on what it, could you provide an example or an idea of the signs to look out for.