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Old Apr 13, 2012, 09:12 AM
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Custom outrunner shaft and bearing service


So I have been re-shafting quite a few motors recently for various reasons and am just curious if there would be enough interest to start a service. Most of time I have been replacing a shaft that is too short and I wanted to maximize the bite on the adaptor. I can also install bearings from Boca if anyone desired to upgrade or just needed new bearings. Shaft material I have been using and is easy to work with is O1 tool steel. I is a little oversized so I grind it down by hand to fit snugly in the bearings of the particular motor I am re-shafting. I can do 3mm, 3.17mm, 4mm, 5mm, 6mm, and 8mm shafts. All I would need to know is how far you need the shaft to extend. Since I mainly do this for EDF use I do not cut C-clip slots, nor do I have the ability to do so. If the shaft needing replacement is for an endbell propeller mount motor a Collar would have to be used. Priceing below.

$11.30 shipped back for 3mm, 3.17mm and 4mm shafts
$13.30 shipped back for 5mm and 6mm shafts
$15.30 shipped back for 8mm shafts

$1 per bearing installed plus the cost of the bearing.
Last edited by scatsob; Apr 15, 2012 at 10:58 AM.
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Old Apr 13, 2012, 01:52 PM
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Shafts


I find 1/8 spring steel [ music wire ] works good for shafts.
If you need to machine it, annealing it with a propane torch
and then rehardening it, is easy, but takes time. Cecil
Old Apr 14, 2012, 01:44 AM
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chuck
3.17 is easy, buy 1/8" drill blanks , works great.
Old Apr 14, 2012, 08:26 AM
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Edited to include 3.17mm shafts.
Old Apr 14, 2012, 11:43 AM
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chuck
have u had good luck w/ boca? are they truly better or is it a crap shoot as w/ the oem bearings?

chuck.
Old Apr 14, 2012, 04:53 PM
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I have had great luck with Boca. Even the "cheap" bearings I have ordered have all been silky smooth. The more expensive ones and ceramics are even better. On some HK motors I have gotten the bearings felt like sandpaper right out of the box.
Old Apr 14, 2012, 05:08 PM
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chuck
thanks for the info. seems there may be a market for your service to me . some of the cheapo motors are quite good but many time the bearings and or the shaft are lousy at best. good luck.

chuck.
Old Apr 14, 2012, 11:50 PM
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you can get 3 mil shafts free out of damaged or trashed CDROMs
Old Apr 15, 2012, 09:24 AM
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Someone is always trying to give us the shaft! LOL

Good luck with your business venture Scatsob!
Old Apr 15, 2012, 10:56 AM
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I guess it should be a sliding scale. Price includes the shaft

$11.30 shipped back for 3mm, 3.17mm and 4mm shafts
$13.30 shipped back for 5mm and 6mm shafts
$15.30 shipped back for 8mm shafts

$1 per bearing installed plus the cost of the bearing.
Old Apr 15, 2012, 11:00 AM
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Quote:
Originally Posted by ALL American View Post
Someone is always trying to give us the shaft! LOL

Good luck with your business venture Scatsob!
LOL. Itís not a business; I work for the government during the day. I just like to tinker and have become proficient at shaft fabrication, installation, and bearing replacement.

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