I had a set of crown and pinion helical gear gears cut in Troy Mic. last year. I hear there is a shop in the Cambridge area that can cut them. Does anyone have there name? I know of Oshawa Gear but they just farm out most of the work to the shop I am looking for and Oshawa just raised their price 33% this year. Thanks Joe
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Yes they are all crazzzy but me and you........... and I am not sure about you!!!!
I don't know what the purpose of your gears are for but here are some sites that you can get already made. We used to buy some for our machines in the papermill.
Need a set made for my differential with a lower gear ratio 3.60 for the highway that was never available for my car. The problem is the setup time most shops do not want to bother with a one off. I called a couple of those shops that came up in the search and same story no one offs.
Thanks for the reply Henry
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Yes they are all crazzzy but me and you........... and I am not sure about you!!!!
Just curious, what do you mean by "cut". Are they able to take an existing gear set and re-cut them to a different ratio (I can't imagine) or are you asking them to make a completely new gear set?
Sorry I don't have an answer for you, I just find this interesting as I've never heard of having custom gears (assuming ring and pinion) crafted just for a specific project. I'd also like to know the cost of the ones you had made last year.
Without ever hearing anything about having gears made (up to this point), I would have changed the entire rear end to one that either has the gear ratio I want, or to a rear end that has that gear available through the aftermarket. I used to work with a guy who had gears made for the trans in his 2wd pulling truck, but never even thought someone would make a ring and pinion in singles.
-- Edited by pint and a pound on Thursday 29th of January 2015 03:37:10 PM
Fords Rule ! If it ain't designed and manufactured in North America it sucks ! I don't do rice, pasta, fish and chips, sauerkraut, Ikea or other third world motor vehicle !
What they do is calculate the number of teeth you can cut into a new pinion blank as your pinion gear will increase in diameter when decreasing the ratio. The problem is that your crown will get thinner making room for the pinion. So you do not want to make your crown so thin that the bolts threads go into the crown less than the width of the cap screw. I wire and Loctite the cap screws in and make sure the wire is under stress and in (correct direction) as not to give the bolt any movement when under load being old school. One of the critical steps in manufacturing is the heat treating the gears so there is no warp age to the crown. A friend bought a set could not get rid of the whine and that was the problem. You will find out when you put your dial inductor on it when you check the back lash in different locations not just one spot. On some cars I am a purist, if that is the differential that was used that is what goes back in. As for cost up to $4,000. depending on the gear set style in your car. If you go into the truck pullers the price can go up I would think being heavier gears.
I hope that helps Joe
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Yes they are all crazzzy but me and you........... and I am not sure about you!!!!
Sorry Henry you are the first person to correct me on that and you are absolutely right. I am sitting here with a red face used that term for how many years done how many and have never been corrected. I wish I could say it was a slip but I must be getting so old I am getting confused. Now I have some people to correct.
Thanks
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Yes they are all crazzzy but me and you........... and I am not sure about you!!!!
There are about 10 gear cutters in the Cambridge area . Its been a number of years since i have had anything made and that company is gone . but if you google cambridge gear a whack in that area will show up
I always assumed someone restoring a rare _________ (fill in the blank) would have no choice but to find a used and usable ring and pinion or an NOS set if nothing was available through the aftermarket.
The early days of roads were actually built for horse and wagon and when the car numbers grew they ruined the road condition for bicycles in places. Back then you had very few roads that were paved and hills were not cut down like they are today so on most roads you could not drive at a neck breaking speed. Manufactures back then used ratios like 5 to 1, 4.75 or down in the low 4s in some cases. You were limited on the country roads you could go on out of town especially in the spring when the frost cam out of the ground and all the mud. They had after market two speed rear axles like Columbia which made a big difference but if you have an enclosed drive shaft you had to suffer. They did not make high speed gears for most cars and the ones that were made are extremely rare.
I am a fan of very early race cars and one race always bothers me when a person mentions the American team with the Thomas Flyer winning the New York to Paris 1908 race. There were no roads in the mid west ( hence the topic )so the American team drove on the railway tracks and reached the coast in 41 days. But the other 5 teams were not allowed on the tracks because of the so-called damage done to the tracks by the American team. The other teams were forced to ship their cars by rail and were penalized by putting extra time on there crossing making the US team the fastest and the US did win the race. So there you have it cheating in car racing to me started in 1908 because of road conditions or lack off.
Sorry for getting sidetracked but just for general interest check out the early teen race cars when the mechanic sat next to the driver in a race. You will also find that a 502 could be looked on as a small block compared to a 28 liter 4 cyl. Fiat racer in 1911 you can check it out on YouTube. Sorry again for the history lesson but I hope some find it interesting.
I have tried to Google the Cambridge area but either they can't or will not do a one off.
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Yes they are all crazzzy but me and you........... and I am not sure about you!!!!
