VM Series Maintenance and Safety Manual 704-0212-209 Machine Components 1- 11
Spindle Motor
The belt-driven spindle motor and spindle are coupled using a no-slippage gear belt. The
motor is fully enclosed, uses forced-air cooling, and has no brushes to inspect or replace.
To allow the machining of a variety of parts, the spindle RPM is specified in the part
program. A manual spindle speed override on the control console permits fine-tuning of
the spindle RPM for a specific machining cycle, without changing the part program.
Table 1–10. Spindle Drive/Belt Ratio
Machine
Main Spindle
Max RPM
Main Spindle
Drive/Belt Ratio
VM5 8000 1:1
VM10 10000 1:1
VM10G 20000 NA
30000 NA
VM10P 12000 1:1
VM10U 10000 1:1
VM20 10000 1:1
VM30 10000 1:1
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