12 years ago
Im rebuilding a spindle for a precision drill / sort of jig bore.
Its 'home made' from a SIP Inspection Microscope.
Pic here: current spindle has a drill chuck on the end, which I intend to
with ER16 collet direct in the spindle.
The current spindle has a ball thrust, then a single row bearing at
and another one at the tail. The bearings are just normal run of the
The spindle cartridge is 30mm OD, and the ER spindle needs a shaft dia
about 15mm. This seems (from a quick poke around at the AET website)
rule out the use of angular contact/taper rollers.
Given I wont be milling on this, only precision hole locating is the
arrangement a good idea, or could it be improved upon easily?