Technical & Reference Section > Tech and Restoration

Pedal axle help required

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Gnarlyscoots:
Well, here's hoping anyway's.

I have a set of ACS Stoker pedals in 1/2". I require them in 9/16. Unfortunately, when taking the axles out, you begin to understand why many just give up.

I don't really want to go down the expensive route of getting some machined in cro-moly or steel and case hardened.

If you take a look at the axle, it has splines behind the bearing cup nut. I am not sure what the purpose of these are for but they are level with the internal bearing cup. The bearing nut cup keeps the bearings off them when done up. The axle only uses a bearing cup nut and is fitted with sealant to stop it coming undone.

With this mind, if I can find an axle long enough that does require a bearing cup nut and locking nut, there is room inside the pedal to allow this.

What I require gentlemen please, is some help in finding axle replacements. I am thinking along the lines of old school rat traps. If anyone has a set of 9/16 rat trap pedal axles they can provide measurements and pictures on, this would be great.

Any other ideas are also welcome  :daumenhoch:

These are the ACS axles and measurements.

Overall length of the axle = 129 mm



The space between the rear edge of both bearing races on the axle = 87 mm



From the end of the bearing race thread to the rear edge of the rear bearing race = 105 mm



and the splines.

oldschoolace:
Have you considered adaptors Terry?. Not ideal i know but a quick solution if its for a rider while you get sorted  :)

Gnarlyscoots:

--- Quote from: oldschoolace on July 11, 2014, 10:51 PM ---Have you considered adaptors Terry?. Not ideal i know but a quick solution if its for a rider while you get sorted  :)

--- End quote ---

Not keen on those Clint. They extend the pedal out further than it should be and put too much strain on the thread area in the crank arm. Thanks for the idea though buddy  :daumenhoch:

chubby:
Thought you'd sold them Terry  :chin:

chubby:
Not that helpful but you should use an opc  :daumenhoch:


























Brimming with cider & wisdom tonight me  :-*

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