G0516 Lathe/Mill -27-
0.005" 0.010"
CB
DE
F
35 80
90 30
100
50 80
66 30
100
Figure 34. Chart showing gear setup for .005".
Figure 35. Actual gear setup for .005" feed rate.
Figure 35 shows a profile of the .005" feed rate
actual gear setup on the machine. Notice how the
gears mesh together in the locations displayed on
the chart.
Here is a real-world example of a gear setup
as shown on the chart:
When the lathe/mill is shipped from the factory, it
is geared for a carriage feed rate of .005" per
spindle revolution, or the gear combination shad-
ed in Figure 34.
B
ED
F
70
4060
80
60
45
Figure 32. The shaded boxes highlight the gear
mesh lines.
1"
⁄
n
16 18 20 24 32 40
B
ED
F
70
4060
80
70
8060
45
70
8060
50
70
4050
100
70
8045
60
70
4030
100
Figure 33. The shaded boxes show specific
gear setups.
6. The boxes shaded in Figure 33 represent
the actual gear combinations required to cut
the thread pitches.
5. The lines between gears “B” & “E” and gears
“D” & “F” on the chart in Figure 32 indicate
where the gears should be in mesh.
NOTICE
On some setups, smaller gears must be
used as spacers on the adjustable shafts.
35
80
90
30
100
Spacer
In Mesh
In Mesh
