I'll be getting a Clausing mod. no. 5310 Lathe in Jan. of next year. The manual from Clausing states that the headstock and tailstock have a "#3 A.S.A." taper. I can't find this listed in my Machiner'y handbook. Is this the same as #3 Morse? I have some #3 Morse tooling already. Thanks for any help.
Garrett Fulton
I don't believe it is, the ASA taper with which I am familiar uses a 0.750" per foot taper--Morse is around 5/8" per foot (although it varies a bit by taper number).
Which issue of _Machinery's Handbook_? In my 25th edition, it is on page 910 at the top, with source dates relating it to ANSI 1981 &
1987.My 15th edition has it on page 1416 -- also at the top. The source dates there reference ASA B5.10-1953, so it has been around for a while.
Yes, it is. Actually, the ASA tapers are made up from three groups.
.239 through .375 is a Brown & Sharpe taper series
1 through 7 (including 4-1/2) is derived from the Morse taper series.) 200 through 1200 are the 0.750 (3/4" per foot) series.Enjoy, DoN.
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