- Joined
- Nov 16, 2012
- Messages
- 5,596
I've decided to re-make my tool post grinder. The one I had was also home made but the bearings were a special design and the housing was too big. Today, I drew-up the plans for a new one using commercial bearings. The front bearing is a high precision Nachi-Fujikosi that was NIB that I picked-up for $50 (normally about $250). It's a roller/taper type that can handle radial and axial loads. The rear bearings are a standard needle-nose thrust and a needle-nose radial. The PDF should show the whole picture pretty clearly but, I did not include the wavy pressure spring that keeps the shaft and taper bearing under load. This thing will be sealed and filled 1/2 way with ATF. BTW, does anyone know of a source for 1/2" diameter grease or oil rings? Right now, the diagram shows O-ring grooves but, I sure would like to use seals instead.
I'll start building this thing soon but, can't do some of it because the thrust and radial bearing haven't arrived.
Ray
PS: Click the PDF file and you can rotate the image in 3 dimensions.
View attachment TPGAssembly.pdf
I'll start building this thing soon but, can't do some of it because the thrust and radial bearing haven't arrived.
Ray
PS: Click the PDF file and you can rotate the image in 3 dimensions.
View attachment TPGAssembly.pdf