"In Search Of" - Zero TRO

scdiveteam

scdiveteam

Rick Geschrey
Silver Member
Hi,

New special bearings installed on my Hardinge Lathe. The TRO was .0001 when I got it and the bearings were a little noisy.

My good friend and machinist Alan replaced the bearings and I had him install a Unique Products Big Bore Chuck as my back chuck.

The TRO is now as close to zero as I can measure it.

This lathe is set up to thread my shafts and do my pin installs using custom tapered 5C collets Al made to match my shaft and butt geometry tapers.

After I broke in the bearings for several weeks, Al trued up the back chuck today and after seeing the accuracy of this baby I almost shit my pants. It was unreal to have this degree of machine accuracy in my shop. My buck chuck could only be adjusted to .0004. This collet chuck is awesome.

Loving life in the cue shop. The Rat Race is always just a fading memory

Rick

Click on image to start video:



Thanks Alan for all you do!





 
Last edited:
My hightower TRO is somewhere between 1 and 2 thou....................

LOL

nice lathe Rick

Kim
 
pescadoman said:
How much did the service cost? I've heard doing bearings on those isn't cheap
Click to expand...

Randy,

I bought the big bore back chuck in new condition for 250.00.

Alan machined my tapered collets, purchased and installed the two headstock bearings, machined the back Chuck adapter and set up the whole deal for me.

The total cost of my set up as seen was around 1500.00 including parts, labor and travel.

To send the head to New York for a bearing change is mucho bucks by the OEM.

This was a super deal by an expert. I am lucky to know Alan to utilize his talents.

I asked him to build me a custom cross slide / compound fixture set up so I can machine the shaft and butt joint tapers to match and eliminate my sanding mandrels. It will have two taper angle stops to mirror both contours and do precision facing also.

Alan is a CNC instructor at a college and runs his own shop.

If anyone is interested in his service, just give me a PM and I can hook you up.

Rick
 
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