- Joined
- Feb 7, 2013
- Messages
- 2,496
This morning I fabricated an arbor to mount in the rotary table for hobbing some gears. The previous tapered arbor I was using
was lacking to some degree in concentricity so this will work better I think. The the gear blanks are 1.000 inch inside diameter
to made the arbor with a snug sliding fit. Gear blanks are reamed to 1.000 inch so that works out great. The hobbing is done
toward the rotary table so there is little chance there will be any slippage in the Morse 4 taper. The arbor sticks out far enough
to there is plenty of clearance between the mill head and face of the rotary table.
This is the MT4 arbor with 1.000 inch mount for the gear blank. I made
a nut with two flats so I can tighten it up with a big Crescent wrench.
Here is the arbor mounted in the rotary table. This will be much
better than my previous set up that required a tail stock.
Even the shop foreman was impressed
was lacking to some degree in concentricity so this will work better I think. The the gear blanks are 1.000 inch inside diameter
to made the arbor with a snug sliding fit. Gear blanks are reamed to 1.000 inch so that works out great. The hobbing is done
toward the rotary table so there is little chance there will be any slippage in the Morse 4 taper. The arbor sticks out far enough
to there is plenty of clearance between the mill head and face of the rotary table.
This is the MT4 arbor with 1.000 inch mount for the gear blank. I made
a nut with two flats so I can tighten it up with a big Crescent wrench.
Here is the arbor mounted in the rotary table. This will be much
better than my previous set up that required a tail stock.
Even the shop foreman was impressed