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- Feb 13, 2017
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I'm not aware of the significance of this gear patter/ratio. Please advise.Just a comment; if the 100/127 pair will mesh with what you have, I would say to hang onto them. They'll come in handy some day soon.
Thanks Yendor- I appreciate it! Im getting an education in just listening to the folks chat here- and I honestly think this is why I like this forum- Im new to tooling, still learning and trying to "build" a shop as I go... and everyone usually has a tidbit or a thought that builds on my knowledge- So Thanks!The Double Keyway gears look like Atlas/Craftsman gears.
Many of those were used with the Double Keyway and paired up together.
I will certainly agree on eclectic- I have "found" more gears in another set of boxes from the sale. Im just gonna have to put them up and get them back out when I have more knowledge.The 7 1/8" diameter , 127-tooth indicate it is an 18-pitch gear, and could be suitable for a South Bend 9/10k lathe. The same applies for the 100 tooth. There are definitely going to be other applications, but the only real intended application for a 127 tooth gear is full conversion for metric thread pitches. For example, you could use that gear as an index to machine something else with 127 holes (or similar).
The previous batch, the 34 tooth is a 14 pitch, and the 45 tooth is a 16 pitch. It looks like a very eclectic assortment of gears. 14 pitch for the small ones, 16 pitch for most, and an 18 pitch metric conversion.
Sounds like my luck as well... Bad timing on my part!I sat down and made myself a 127 plate for my dividing head last weekend. Finished it off hours before this 127 showed up mere miles from me.
Here is a hub shot of the 100T gear with empty pin hole in hub
Thanks SLK- I was thinking the pin hole was to "mount" another gear to the set- thanks for clarifying!That empty "pin hole" in the hub is the lubrication point for the gear. The DP for your transposing pair is 18, so it is for one of the smaller lathes (like a SB 9" or 10K). THAT gear pair is easily worth $200-250 by itself. Add some of the other spur gears that mesh with the 18 DP set and you're talking real money for the set!