VM Series Maintenance and Safety Manual 704-0212-209 Machine Components 1- 13
Rapid Traverse Rates
The following tables show rapid traverse rates, in metric and English, for the axes. The
Spindle Max RPM values are listed in some tables to differentiate between machine types.
Where NA is indicated, the axis is not available for the machine model.
Servomotors
Axis velocity, position, and travel direction are controlled using AC servomotors along
with the CNC control. These motors are enclosed, transistor-driven, and self-cooled.
Because they are designed without brushes, the motors are free from flashover and
commutation loss.
The servomotors power the ballscrews by belt drive on the X and Y axes, and by direct
drive transmissions on the Z axis.
Ballscrews and Bearings
The precision ballscrews are the double ballnut type (the VM series machines have a
single nut anchored on both ends of each ballscrew). The ballscrews are hardened and
ground to minimize “drag torque” and reduce backlash.
The axes positioning drives are supported at the drive-ends by ABEC-7 class bearings.
Machine Spindle Max RPM
Rapid
Traverse
X and Y Axes
Rapid
Traverse
Z Axis
Rotary Axis
Rotation Speed
VM5 8000
19 m/min 19 m/min NA
VM10 10000
24 m/min 24 m/min NA
VM10G 20000
**30000
24 m/min 24 m/min NA
VM10P 12000
30 m/min 24 m/min NA
VM10U 10000
24 m/min 24 m/min 25 rpm
VM20 10000
24 m/min 24 m/min NA
VM30 10000
24 m/min 24 m/min NA
Table 1–13. Rapid Traverse Rates, Metric
Machines Spindle Max RPM
Rapid
Traverse
X and Y Axes
Rapid
Traverse
Z Axis
Rotary Axis
Rotation Speed
VM5 8000
750 ipm 750 ipm NA
VM10 10000
945 ipm 945 ipm NA
VM10G 20000
**30000
945 ipm 945 ipm NA
VM10P 12000
1181 ipm 945 ipm NA
VM10U 10000
945 ipm 945 ipm 25 RPM
VM20 10000
945 ipm 945 ipm NA
VM30 10000
945 ipm 945 ipm NA
Table 1–14. Rapid Traverse Rates, English