Old Iron
Hot Rolled
- Joined
- Jan 15, 2008
- Location
- Andalusia, Alabama
Correct me if I'm wrong but aren't they 14-1/2degree PA DP20.
Thanks in Advance
Paul
Thanks in Advance
Paul
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South Bend Lathe Gear
- Thread starter Old Iron
- Start date
- Replies 5
- Views 1,521
Ken-Bergen
Cast Iron
- Joined
- Jun 7, 2012
- Location
- Chilliwack BC Canada
You maybe right and you maybe wrong but without knowing what lathe and what gear you're talking about who knows.
iwananew10K
Diamond
- Joined
- Sep 12, 2010
- Location
- moscow,ohio
the only SB that uses 20DP i know of is the 9`s and 10K`s - and only on the spindle and reverser gears.
starting at the stud gear the train changes to 18DP
starting at the stud gear the train changes to 18DP
Old Iron
Hot Rolled
- Joined
- Jan 15, 2008
- Location
- Andalusia, Alabama
Ok thanks for replying and it is a 13".
Paul
Paul
iwananew10K
Diamond
- Joined
- Sep 12, 2010
- Location
- moscow,ohio
not sure about the 13", but the tooth count + 2 divided by the outside diameter will give you the DP
ie- 42 tooth gear with a diameter of 2.750" would be - T+2=44/2.750" = 16DP
ie- 42 tooth gear with a diameter of 2.750" would be - T+2=44/2.750" = 16DP
kitno455
Titanium
- Joined
- Jul 9, 2010
- Location
- Virginia, USA
Is it a single tumbler gearbox or double? I think it is 16 or 14 DP depending. All older SBs would be 14.5 PA. You really need to measure what you have, especially since you have not told us which gear it is you are looking for.
allan
allan
