We finally got the failed original back for a sample.
Prefer steel, not aluminum as original.
MTH copy of pre-war Flyer Standard Gauge, 4695 4-4-2.
I have sample and photos. Has a hub for pressing onto shaft. Spur drive, like Lionel steam was.
large gear is approximately 1-7/16” diameter and has 50 teeth.
Any idea where to go?
Thanks
Need a gear made
- ScaleCraft
- Posts: 6461
- Joined: Thu Jan 26, 2012 10:15 pm
- Location: Floe Ice, Auntarctica
Need a gear made
Dave....collector, restorer, and operator of the finest doorstops
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- Posts: 12843
- Joined: Sat Jan 13, 2007 7:57 pm
Re: Need a gear made
I know nothing about gear hobbing, but I would look for a hobbyist with a gear hobbing attachment. Or maybe buy one for a friend with a lathe.
Older train gears are standard parts, and for lots of $ Boston Gear will probably sell you one.
Raoul at NWSL was known to make a special gear now and then.
Older train gears are standard parts, and for lots of $ Boston Gear will probably sell you one.
Raoul at NWSL was known to make a special gear now and then.
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- Posts: 12843
- Joined: Sat Jan 13, 2007 7:57 pm
Re: Need a gear made
I found this tedious, but all the info is there. Three parts.
Google "gear hobbing"
https://m.youtube.com/watch?v=7WleHVtIc1c
Google "gear hobbing"
https://m.youtube.com/watch?v=7WleHVtIc1c
- R.K. Maroon
- Posts: 2930
- Joined: Tue Feb 22, 2011 9:20 pm
Re: Need a gear made
There is a good chance that the gear is indeed standard, but it may be metric.
Dave: I can look into this but need the pitch diameter, which is approximately mid-tooth to mid-tooth. Also, it is important that the gear count is accurate, so double check that if it's not too tedious.
Jim
Dave: I can look into this but need the pitch diameter, which is approximately mid-tooth to mid-tooth. Also, it is important that the gear count is accurate, so double check that if it's not too tedious.
Jim
Slow progress is better than no progress
- ScaleCraft
- Posts: 6461
- Joined: Thu Jan 26, 2012 10:15 pm
- Location: Floe Ice, Auntarctica
Re: Need a gear made
working on it. Thanks
Dave....collector, restorer, and operator of the finest doorstops
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