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15
PM-1030V v5 2020-10
Copyright © 2020 Quality Machine Tools, LLC
Z2
65T
70T
65T
65T
65T
65T
Z3
50T
46T
60T
60T
45T
50T
Z4
40T
30T
30T
30T
20T
20T
Lower gear
76T
75T
60T
80T
80T
80T
B
9-1/2 11-1/2
15
16
-
-
A
19
23
30
32
36
40
C
38
46
60
64
72
80
Less common threads
(not illustrated)
Z3
40T 50T 55T 65T
B
8
10
11
13
A
16
20
22
26
C
32
40
44
52
Z3 varies,
see table
below
B
9
A
18
C
36
B
12
A
24
C
48
B
14
A
28
C
56
THREAD CUTTING SETUPS — U.S. threads in TPI
(threads per inch)
Figure 3-21
Gear setups for U.S. threads