How to tell what MT tailstock taper is?

Table on page 906 of Machinery Handbook has the specs. If you don't have this, give us the diameter at the small end of the taper, diameter at large end, and distance between the two diameters.

Karl

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Hey Greg,

Scott Logan has some good stuff at

and in particular

or closer at

The following is an excerpt from that last site

Taper Name Large Taper/ Taper/ Angle Small Length End Foot Inch From End Center

----------------------------------------------------------------------- #0 Morse 0.3561 .6246 .0521 1.4908 0.2520 2.00 #1 Morse 0.4750 .5986 .0499 1.4287 0.3690 2.13 #2 Morse 0.7000 .5994 .0500 1.4307 0.5720 2.56 #3 Morse 0.9380 .6024 .0502 1.4377 0.7780 3.19 #4 Morse 1.2310 .6233 .0519 1.4876 1.0200 4.06 #4-1/2 Morse 1.5000 .6240 .0520 1.4894 1.2660 4.50 #5 Morse 1.7480 .6315 .0526 1.5073 1.4750 5.19 #6 Morse 2.4940 .6257 .0521 1.4933 2.1160 7.25 #7 Morse 3.2700 .6240 .0520 1.4894 2.7500 10.00

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I would measure just the diameter of the visible opening of the tailstock quill, and pick the closest one form the column "Large End".

Take care.

Brian Lawson, Bothwell, Ontario.