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Mechanics and Construction => Mechanics and Construction => Topic started by: blackbeard on August 11, 2009, 02:58:57 PM

Title: what's the name of this shaft?
Post by: blackbeard on August 11, 2009, 02:58:57 PM
this is what it looks like. is there a special name for this? i'd like to stick a wheel right onto the end of it bit i'm having trouble finding one with the right connection since i don't know what it's called

(http://i213.photobucket.com/albums/cc300/mashersmasher/DSCN7142.jpg)
Title: Re: what's the name of this shaft?
Post by: SmAsH on August 11, 2009, 03:46:23 PM
the shaft is hexagonal right?
Title: Re: what's the name of this shaft?
Post by: blackbeard on August 11, 2009, 03:49:03 PM
it's all round but one side is slightly flat. it's not quite half way through
Title: Re: what's the name of this shaft?
Post by: Trumpkin on August 11, 2009, 03:51:48 PM
I think it's called a "D shaft"
Title: Re: what's the name of this shaft?
Post by: SmAsH on August 11, 2009, 04:05:37 PM
yep, that would most likely be a "D-shaft"...
look around at some other d-shafts in google and see if they look the same to confirm.
Title: Re: what's the name of this shaft?
Post by: msprague on August 11, 2009, 04:28:16 PM
You'll want to measure the diameter of the round part of the shaft, as that is what the wheels need to match.  For example 3mm and 6mm are common sizes.
Title: Re: what's the name of this shaft?
Post by: blackbeard on August 11, 2009, 06:31:32 PM
yep that would be it. there doesn't seem to be many wheels that use that type of shaft though. i've managed to modify some old wheels to fit the these motors though
Title: Re: what's the name of this shaft?
Post by: wil.hamilton on August 11, 2009, 06:49:14 PM
you need to buy hubs ususally, lynxmotion sells them for 3 and 6 mm shafts

http://www.lynxmotion.com/Category.aspx?CategoryID=42
Title: Re: what's the name of this shaft?
Post by: blackbeard on August 11, 2009, 07:09:19 PM
oh perfect!
Title: Re: what's the name of this shaft?
Post by: mdmedlin on August 11, 2009, 11:36:58 PM
Where I work we have many shafts like that.  You use a standard wheel for it.  The flat part is for a set screw.  A lot of our encoders have shafts like that and the cog wheel fits on the end.  The flat part is so that the cog wheel sets better and does not slip.
Title: Re: what's the name of this shaft?
Post by: matt liao on August 12, 2009, 12:27:04 AM
It's indeed called "D-shaft", I have seen it before.
Title: Re: what's the name of this shaft?
Post by: blackbeard on August 12, 2009, 10:52:36 AM
just ordered some 6mm hubs for these guys. i ordered them from another site since they were cheaper with shipping though.
Title: Re: what's the name of this shaft?
Post by: SmAsH on August 12, 2009, 03:39:27 PM
great, got a link?
Title: Re: what's the name of this shaft?
Post by: blackbeard on August 12, 2009, 03:46:40 PM
it's robot marketplace. shipping was about $10 cheeper but i think it's because of my location. in any case here's the link
http://www.robotmarketplace.com/products/0-MHUB04.html