jklawton
Plastic
- Joined
- Oct 20, 2011
- Location
- Rochester, NY, USA
Is there any reasonable way to secure a pulley on a keyed shaft where both have been worn leaving a largest gap of about 0.035 inches. This is an old Powermatic table saw, 2 Hp motor and 3-belt sheave. The cast iron sheave is worn more than the motor shaft but is not available as a replacement part. I am currently considering turning down the motor shaft enough to get a consistent diameter (max wear is ~0.015"), then converting to a poly-V belt drive with new pulleys on the motor and arbor. New motor pulley will have to be purchased unbored or bored out to match reduced motor shaft. I suspect that this is the best option, but wondered if there was some other reasonable option that I am not aware of being a mostly self-taught home shop machinist. I was even thinking about something like pouring low-melting temp metal or Stycast in the gap. Would this be long-lasting and strong enough. How would one ensure concentricity...
I bought this saw new in 1977 and this is the first trouble I've had with it so can't complain too much. Thanks for any discussion. Jim
I bought this saw new in 1977 and this is the first trouble I've had with it so can't complain too much. Thanks for any discussion. Jim