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In the pic below, there's a black ring that holds the bearing guide wheel in place against the router bit. I need another one of those so I can position the guide wheel higher up on the shank. Knowing what that piece is called will give me something to actually search for.

enter image description here

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up vote 3 down vote accepted

Often called Stop collar or shaft collar.

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I've also seen lock collar. – Maxime Morin Feb 3 '13 at 18:50
Collit.....old school name – shirlock homes Feb 3 '13 at 19:44
@shirlock- do you mean collet? I disagree. A collet provides a clamping force, often to hold a tool, to transmit a motive force. This is simply a stop to prevent parts from sliding up the shaft. IMHO of course :) – bcworkz Feb 3 '13 at 20:25
My bad, a collet is a type of chuck, like on a dremel tool etc. OPPS!!!! – shirlock homes Feb 3 '13 at 20:47
Shaft collar wins! menards.com/main/… – oscilatingcretin Feb 3 '13 at 21:33

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