square taper spindle question 
#1 2012-12-04 10:27am
- astroidbeltwalker
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square taper spindle question
new to me, thanks in advance.
here are the sugino ct-a5 amrs with a sugino maxy spindle.
the drive arm side ( chain ring side ) fits right onto the spinle looks like if tighten then would sit right on the spindle
however the non-drive arm sits "high" on the spindle, is that just a matter of tightening the hardware down.
inside the crank arm i can see where the spindle marks are,
thanks again for helping. pictures. 

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#2 2012-12-04 10:32am
- mtbwrxwagon
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Re: square taper spindle question
yes, you have to tighten it to force it onto the spindle. The spindle is tapered for that exact reason. Keeps it snug for the most part ![]()
[img]http://farm9.staticflickr.com/8370/8560134984_095f936c1c_z.jpg[/img]
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#3 2012-12-04 10:43am
- astroidbeltwalker
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Re: square taper spindle question
thanks man,
can i ask another question. i plan on doing a mock up of the bike ( for pictures ) & tear down. would i need a crank removal tool
if these get a tighten,
thanks again. brian.
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#4 2012-12-04 10:45am
- SoGnarly
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Re: square taper spindle question
only if they get stuck
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#5 2012-12-04 10:51am
- mtbwrxwagon
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Re: square taper spindle question
That is a good question and is easy to answer, just look how many cranks have hammer marks on them and are sold now. I'd get the removal tool to have in your toolbox anyway. They always come in handy and do its job very well.
[img]http://farm9.staticflickr.com/8370/8560134984_095f936c1c_z.jpg[/img]
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#6 2012-12-04 10:51am
- astroidbeltwalker
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Re: square taper spindle question
i dont know what that means, anyone know for sure. dont want to fit these and not be able to get them back off for tear down.
should i anticpate them getting stuck ?
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#7 2012-12-04 10:53am
- mtbwrxwagon
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Re: square taper spindle question
if you are using a 14mm socket to put the nut on and you're torking it down, yes you need a removal tool
[img]http://farm9.staticflickr.com/8370/8560134984_095f936c1c_z.jpg[/img]
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#8 2012-12-04 10:57am
- astroidbeltwalker
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Re: square taper spindle question
thanks mtbwrxwagon, in short crank arms go onto the spindle have the right tools for reverse procedure.
again thanks.
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#9 2012-12-04 10:58am
- astroidbeltwalker
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Re: square taper spindle question
anyone know the proper crank puller for square taper spindle
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#10 2012-12-04 11:03am
- mtbwrxwagon
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Re: square taper spindle question
Here it is and what I use as well
http://www.parktool.com/product/crank-p … nks-ccp-22
[img]http://farm9.staticflickr.com/8370/8560134984_095f936c1c_z.jpg[/img]
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#11 2012-12-04 12:22pm
- Coco
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Re: square taper spindle question
Astroid, remember to put a small smear of grease on each flat portion of the spindle taper before installing the crank arms. It helps pull the arm on even and aids in removal.
I'm probably stating the obvious here but also grease the crank spindle bolt threads too.
Last edited by Coco (2012-12-04 12:27pm)
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#12 2012-12-04 1:55pm
- astroidbeltwalker
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Re: square taper spindle question
thanks, man.
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