First, a thank you to all the kind people who participated in our informal survey of Threaded Spindle Data. Below, you will find a summary of the data received. Remember that NONE of this information is guaranteed, it is more a guideline to various spindle types. Also, keep in mind that many manufacturers changed their design over the years.
Mfg. |
Lathe Model |
Serial No. |
Swing |
Shoulder Dia. |
Register Dia. |
Thread |
Pitch |
Meas. |
PD |
Wire Size |
Register Length |
Thread Length |
A |
B |
C |
D |
E |
F |
G |
||||||
Taig |
Microlathe II |
4.5 |
1 Hex |
0.751 |
0.750 |
16 |
0.770 |
0.704 |
0.040 |
0.140 |
0.400 |
|
Atlas |
10100 |
000320 |
6.0 |
1.362 |
0.999 |
1.000 |
10 |
0.234 |
0.659 |
|||
Atlas |
10100 |
00208 |
6.0 |
1.372 |
0.991 |
0.207 |
0.638 |
|||||
Sears |
101.07301 |
6.0 |
1.365 |
1.000 |
1.000 |
8 |
0.187 |
0.687 |
||||
Sears |
101.07301 |
6L 028371 |
6.0 |
1.367 |
0.999 |
1.000 |
8 |
0.175 |
0.700 |
|||
Sears |
101.07301 |
6.0 |
1.362 |
1.000 |
1.000 |
8 |
0.140 |
0.729 |
||||
Sears |
101.07301 |
5738 |
6.0 |
1.369 |
1.000 |
1.000 |
8 |
0.188 |
0.688 |
|||
Sears |
101.07301 |
11439 |
6.0 |
1.365 |
0.998 |
1.000 |
8 |
0.200 |
0.660 |
|||
Myford |
ML7R |
KR146444 |
7.0 |
1.724 |
1.250 |
1.019 |
12 |
1.240 |
1.117 |
0.065 |
0.440 |
0.760 |
Myford |
ML7 |
K63610 |
7.0 |
1.614 |
1.250 |
1.125 |
12 |
1.141 |
1.072 |
0.047 |
0.427 |
0.580 |
Myford |
Super 7B |
7.0 |
1.724 |
1.249 |
1.125 |
12 |
0.436 |
0.557 |
||||
Myford |
Super 7 x 19 |
SK134348 |
7.0 |
1.725 |
1.250 |
1.125 |
12 |
1.164 |
1.071 |
0.055 |
0.433 |
0.500 |
Dalton |
7.3 |
1.751 |
1.250 |
1.250 |
12 |
0.198 |
0.684 |
|||||
South Bend |
Junior |
50826 |
8.0 |
1.800 |
1.380 |
1.375 |
10 |
0.163 |
0.678 |
|||
Logan |
9.0 | 1.875 | 1.500 | 1.500 | 8 | 1.527 | 1.419 | .072 | 0.250 | 0.750 | ||
Jet |
920N |
9.0 |
2.052 |
1.535 |
1.500 |
8 |
1.521 |
1.413 |
0.072 |
0.389 |
0.868 |
|
King |
CH-920 AG |
52 |
9.0 |
2.066 |
1.535 |
39mm |
4mm |
1.573 |
0.092 |
0.366 |
0.865 |
|
Seneca Falls |
STAR |
2537 |
9.0 |
1.851 |
1.115 |
1.125 |
12 |
1.148 |
1.079 |
0.047 |
0.125 |
1.063 |
Logan |
10.0 | 1.875 | 1.500 | 1.500 | 8 | 1.527 | 1.419 | .072 | 0.250 | 0.750 | ||
Atlas |
TH42 |
044357 |
10.0 |
1.990 |
1.500 |
1.500 |
8 |
0.185 |
0.833 |
|||
Seneca Falls |
STAR 9X5 |
916013 |
10.0 |
2.000 |
1.437 |
1.432 |
12 |
1.499 |
1.384 |
0.063 |
0.619 |
0.493 |
Sheldon |
LWQ |
2462 |
10.0 |
2.107 |
1.750 |
1.750 |
8 |
0.370 |
0.759 |
|||
Sheldon |
L44 |
TLWQ 10406 |
10.0 |
2.125 |
1.750 |
1.750 |
8 |
0.375 |
0.750 |
|||
South Bend |
CL187ZB |
19898R |
10.0 |
2.718 |
2.246 |
2.250 |
8 |
2.331 |
2.166 |
0.091 |
0.094 |
1.063 |
South Bend |
CL8187AB |
9139RKX14 |
10.0 |
2.715 |
2.260 |
2.250 |
8 |
2.293 |
2.167 |
0.078 |
0.170 |
1.000 |
Logan |
11.0 | 2.875 | 2.286 | 2.250 | 8 | 2.277 | 2.169 | .072 | 0.375 | 0.750 | ||
Logan |
12.0 | 2.875 | 2.286 | 2.250 | 8 | 2.277 | 2.169 | .072 | 0.375 | 0.750 | ||
Atlas |
5991 |
4481 |
12.0 |
1.986 |
1.499 |
1.500 |
8 |
0.188 |
0.822 |
|||
Atlas |
3986 |
103918 |
12.0 |
2.000 |
1.500 |
1.500 |
8 |
0.200 |
0.800 |
|||
Jet |
1236P |
L81-12-156 |
12.0 |
3.545 |
2.439 |
2.350 |
8 |
0.562 |
0.875 |
|||
Sears |
101.28990 |
101204 |
12.0 |
1.981 |
1.500 |
1.500 |
8 |
1.575 |
1.408 |
0.092 |
0.202 |
0.800 |
Sheldon |
WM-46-P |
28054 |
13.0 |
2.666 |
2.280 |
2.250 |
8 |
0.464 |
0.789 |
|||
Logan |
6510/6560 | 14.0 | 2.875 | 2.286 | 2.250 | 8 | 2.277 | 2.169 | .072 | 0.375 | 0.750 | |
Sidney Machine |
Lot 160 |
4943 |
14.0 |
3.001 |
2.251 |
2.250 |
8 |
2.274 |
2.166 |
0.072 |
0.964 |
1.276 |
South Bend |
183-D |
150458 |
14.5 |
3.231 |
2.261 |
2.250 |
6 |
0.219 |
1.344 |
|||
LeBlond |
16.0 |
2.664 |
2.346 |
2.375 |
5 |
0.325 |
1.655 |
|||||
Monarch |
16.0 |
3.675 |
2.748 |
2.750 |
6 |
0.438 |
1.268 |
|||||
Barker |
3069 |
18.0 |
3.470 |
2.672 |
2.656 |
8 |
2.720 |
2.591 |
0.079 |
0.250 |
1.650 |
|
Emco Maier |
Maximat V10 |
124mm |
50mm |
40mm |
39mm |
4mm |
40.45mm |
2.5mm |
12.6mm |
24.5mm |
||
Habegger |
Neotor |
200mm |
50.010 |
37.970 |
37.59mm |
3mm |
39mm |
1.98mm |
8.5mm |
16mm |
||
Schaublin |
102VM |
14228 |
204mm |
50mm |
37.97mm |
37.6mm |
3mm |
10mm |
15mm |
|||
Schaublin |
102 |
204mm |
63.03mm |
38mm |
38mm |
3mm |
40.07mm |
35.6867mm |
0.092 |
9.45mm |
16.75mm |
|
Emco Maier |
Unimat SL |
42mm |
17.67mm |
12mm |
12mm |
1mm |
12.15mm |
.6mm |
3mm |
9mm |
||
Cowells |
90 |
90mm |
18.79mm |
13.99mm |
13.88mm |
1.5mm |
14.53mm |
1.99mm |
2.3mm |
10.3mm |