Anyone still run Kamma and or swap out for something newer?

If it's working well no reason to change it! I've run Kaamas over 35 years and LOVE them! Properly maintained they will last forever and have all the speed of the newer drives. Unless they are causing you problems, run um' til they quit!

They are a very simple design. If anything does wear out, and good machine shop can make new parts for them. join the facebook group Kaama Surface drives. Lots of people still use them.