Hi. I think belt drive(pulley) has some advantages over gear drive for your system, for instance it produces less noise, less expensive, easier to maintain, easier to assemble etc.
Hi Bader,
Try this site: www.leser.com . They are the manufacturer of Relief Valve. Download their full catalogue, you will find lots of useful info in it.
Regards
MCM
By taking several dimensions at several points on the existing bushings, the smallest diameter or the smallest clearance found must be the design clearance. This is true if no heavy vibrations detected.
The running clearances also depend on the operating enviroment. If foreign particles, e.g...