gbritnell said:Hi Wesley, you might try these people. I have purchased from them in the past with very good luck.
https://sdp-si.com/eStore/
gbritnell
zeeprogrammer said:Wow. Completely missed this thread.
Very nice project Chris. Nice work.
I'm very interested in seeing it run. Should be cool.
vascon2196 said:Additional gear information for anyone attempting to build this engine.
The original plans call out for an Internal Gear, Boston Gear P/N: Y4872 but it appears that they change the part number to read "YI4872" to help designate that it is an "internal" gear (I guess). The Orbiting gear remains Y4836 for Boston Gear. McMaster Carr, MSC, and Martin gears did not have a cross reference part that I could find...I will keep searching for one though.
Here is the gear information.
Boston Gear P/N: YI4872-Brass
- 72 Teeth
- 48 D.P.
- 20-degree pressure angle
- 1/8" face width
Boston Gear P/N: Y4836- 36 Teeth
- 48 D.P.
- 20-degree pressure angle
- 1/8" face width
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