Tapio...
The 32 and 48 refer to teeth per inch (pitch).
I use nylon inserts in polycarbonate (Lexan)frames, but I'm using chains and sprockets, not gears, so if any wear does occur in the bushings it will have no effect on the mesh...I'll still have 5 or 6 teeth engaged out of 10, rather than just 1 or 2 out of 60 or 80. If the shaft spacing doesn't start and stay exact, gears won't work, so if you're going to use those fine tooth patterns like Phedon and Tim do, you'll need to use ball bearings. K&P use bronze bushings and coarse tooth gears to counter the inevitable wear, but that's why they get ratchety under load after a while.
We know you're capable of precision machining, and if you are going to make a top grade geared winder you'll need all your skills. I don't have those skills, and with chain drive I don't need them.
Art.
Received on Mon Mar 14 2011 - 06:28:56 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:46 CET