How to correctly bore out a pulley?
Posted: Thu May 17, 2012 8:24 am
I have a need to bore some pulleys out to various sizes. I recently acquired a little Myford lathe to help me out. Practising on some steel rod the closest to 10mm I can achieve with a twist drill is 10.15mm, really I would like this as close to 10mm as possible as my shaft is 9.98mm. I have a small boring bar which might just scrape in there, but I also need a 6mm bored in another pulley and there is now way my boring bar will fit in there. For the 6mm I have bought a 6mm hand reamer, I plan on centring the pulley in the 3 possible 4 jaw chuck and check with DTI for alignment . Then I will drill to 5.5mm which will prob end up at 5.6 or 5.7mm the use the reamer steadying with the tailstock and manually spinning the chuck.
Anyone else bored pulleys and what is your techniques?
All the best
Gav
Anyone else bored pulleys and what is your techniques?
All the best
Gav