Slippy clutch material?

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tekfab:
Hi Ade. I used this company for a re-lined brake shoe for my lathe. Might be worth a shot.

http://www.industrialfriction.com/

Mike

hermetic:
+1 for SRBP, I have seen this type of clutch with a single plate and nearly always they use an SRBP plate. If you take a bit of it to a supplier, or post a pic I am sure someone will be able to identify what it is. Trouble with Wickmans is that they are an umbrella group for a lot of manufacturers, many of whom simply no longer exist. They actually bought Covmac, whe were a Machine tool maker, and made nut and bolt machinery under the Covmac name.
Phil

petertheterrible:
As this will be my first post on this forum I do not know what to expect.

The plate you describe sounds similar to the slipper clutches used on PTO drives of tractors. These clutch pads are readily available at the local farmers supply. The pads are just large round flat rings made from composites. These are made of different types of fiber and range from soft to hard grades. I have used these types of pads (round donuts) on different machines retrofitting them. They are torque regulating and protect the machine from self destructing. I hope this helps, but it is difficult to say with no size comparison. An alternative is the synthetic clutches fitted to some ride-on lawn mowers. If in doubt visit the local break an clutch guy, they usually know a thing or two about weird composites. Once has a lathe using the same brakes as a Thames Trader, so their usually is a chance that the parts you are looking for had other destinations as well.

AdeV:

--- Quote from: petertheterrible on February 25, 2015, 03:35:25 PM ---As this will be my first post on this forum I do not know what to expect.

The plate you describe sounds similar to the slipper clutches used on PTO drives of tractors. These clutch pads are readily available at the local farmers supply. The pads are just large round flat rings made from composites. These are made of different types of fiber and range from soft to hard grades. I have used these types of pads (round donuts) on different machines retrofitting them. They are torque regulating and protect the machine from self destructing. I hope this helps, but it is difficult to say with no size comparison. An alternative is the synthetic clutches fitted to some ride-on lawn mowers. If in doubt visit the local break an clutch guy, they usually know a thing or two about weird composites. Once has a lathe using the same brakes as a Thames Trader, so their usually is a chance that the parts you are looking for had other destinations as well.

--- End quote ---

Hi Peter,

Well - first, welcome to the forum! It's a great place, you should pop over to Introductions and tell us a bit about yourself & your projects. Nothing too mad for this place!

Re PTO clutches - I suspect they may be a bit "meaty" for this application, the clutch has to be overridden with just normal hand force, but I think we're definitely on the right track (aha - a PCB joke :palm:).

hermetic - unfortunately, all that's left is some dust, and the thinnest wafer of the remainder of it (and I think that's fallen to bits). I have some old red circuit board knocking about, I may try cutting a disk of that & seeing how it goes. If it works(ish), then I'll get some proper stuff.

geoff_p:
Daft as it it sounds - what about a piece of plywood? At least for starters.

Geoff
Thailand

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