just saw we still got a bunch on the shelf...20k rpm spindles probably cost 10k apiece- we trashed the machines years ago, what a flimsy piece of junk...the joy of changing a belt involved removing the spindle motor, unthreading the 2 piece spindle, removing the clamp cylinder, then stoning/tramming/repinning everything so 2/10 runout max. 40 taper without keys meant a broken tool = regrind...we had a dozen of them running, bought half a dozen spare spindles as it was a never ending battle, saw the crate of spindles still on the shelf, some still wrapped...been stored over 10 years, would all need rebuilt, but anyone unfortunate enough to still be running these, would make some cheep cores...think the replacement model was called a sabre, but was probably changed a lot. hpmcs were from like 1988, had acramatic 850 controls, reliance vc90 spindle drives, seimens servos, heidenhain scales, in 93 we retrofitted 4 to fanuc, soon after got rid of the other 8 as the fanuc ones outran the 12 acramatics... mostly due to uptime...remember needing custom timing pulleys made to run the fanuc servos, who but cinci would use a .333" pitch ballscrew? recall the seimens servos had 2 hall switches reversed wired and a cinci part number and pricetag. man i hated those machines.