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Machinery manuals

Part 25 A34.

It is useful in this case to search for both 'vmc' and vm-c'. To you, they are the same; to the al gore rhythm, they are different.

I have a Myford VME mill so slightly larger table and I can't see any way of lubricating the spindle bearings, I also replaced the overly stiff original belts with a linked type with great success.

Tony

I think I looked in to the spindle bearings many years ago – I seem to recall having no luck with the thrust ball bearing at the bottom – I began thinking about an upgrade to a taper roller on the nose but after removing the pulley and bearings, cleaning and adjusting it's all been solid and sound ever since.

I was thinking along the lines of a "Gamet100035/100072C Super Precision Flanged Tapered Roller" The flange provides about 2mm clearance behind the bearing, and reduces the nose to table by 9mm or so. I'd have fit a standard rotary shaft seal in a carrier secured to the quill to seal it. I can't remember if I did a drawing – I have two young kids now and focus my spare time on tinkering with other things and if I get some me time, I'm zapping about on my 2 stroke faster than I should be, or tinkering with it…….

I'm sure a normal taper roller would suffice for a 10th of the cost (or less!)

Thank you for raising this, RRMBK.

I have the same machine, and it suffers from excessively stiff quill vertical travel and as well as that it's quite possible the bearings or at least their lubrication are a little old and worn out by now. It also has a problem that often makes inserting the R8 tooling difficult – it feels like a loose key or pin not reliably engaging the keyways.

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Thank you DC31K and Russ –

Have bookmarked these and down-loaded the Ostia manual. I think they are actually the same document. I don't think they differ from the information I have already but I will study them carefully to see if they give any more information… such as actually how to dismantle the thing to service it!

I did at least find my existing manual useful for making a drawbar to replace the original lost in a house-move. While at it the sectional drawing showed how I could make it self-ejecting.

I have a VMB which has a similar belt arrangement except that the intermediate pulley, instead of floating, was fixed on a sliding plate that had to be loosened, adjusted, then tightened when you changed belt ratios on the front, a stupid design! When I upgraded to a 3ph motor + VFD I used the intermediate pulley on the motor as it had the same dimensions as the spindle pulley and eliminated the intermediate pulley stage. Haven't missed it!

Curious – I have a VMB bought direct from Myford in 1998, and it has a floating intermediate pulley.

Bought mine in 2003 so they must have changed the design.