View Full Version : Snap rings

03-17-2009, 12:32 PM
Need to make some replacement shafts that incorporate snap rings - the ones that need the pliers with the little tips.

Shaft is 5/8 inch diameter. I have the original rings.

1. Do I simply measure the id (the rings need to be expanded to remove them) of the ring and its thickness and then grind a lathe bit - thinking parting-tool like - to reflect the width and then "part off" to the depth required by the id of the ring?

2. Should there be some clearance between the inside of the ring and the groove diameter? Is the ring supposed to grip on the shaft by its inside diameter onto the shaft? Or should there be clearance? If yes, amount?

3. Can I re-use the originals or best to replace?

4. Or?

03-17-2009, 12:40 PM
Eat my pen name,:D the "Circlip" grooves are cut with a parting type tool, if you can get the old one off WITHOUT distorting it, measure the i/d and make the bottom dia a couple of thou smaller. NEW is better, but depending on the application you can re-use. Over stressing is the watchword. Tinternet key words would be "Anderton Springs" "Tru-Arc" "Circlip"

Regards Ian.:cool:

03-17-2009, 12:57 PM
McMaster has lots of tech info if you don't have a handbook:

5/8RETAININGRING (http://www.mcmaster.com/library/20061205/97633A230L.GIF)

03-17-2009, 02:35 PM
Go to here


download type details Inch based rings at back.

Complete manual at bottom

Steve Larner