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Jeep Wrangler JK
JK Build Threads & Member's Rides
JK high school build
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<blockquote data-quote="Dirty Dog" data-source="post: 459353" data-attributes="member: 24042"><p>Heard back from my son last night. </p><p></p><p>He says you can make the teeth as thin as you want, as long as you make it from a material that has a yield strength higher than the force to be applied. I think that's true, but also not terribly useful since we can't select gears on that basis. </p><p></p><p>He also said that the changes in tooth dimension and contact patch would tend to offset, but that they're unlikely to have a significant impact on overall strength due to their relatively small degree. That's kind of what I expected him to say.</p><p></p><p>His final comment was that the manufacturing process probably has more to do with failure rates than anything else. In other words, if a given ring gear regularly breaks prematurely, buy better gears.</p><p></p><p>NASCAR teams regularly use gears up to 6.30:1, so clearly you can combine super low gears with high power.</p></blockquote><p></p>
[QUOTE="Dirty Dog, post: 459353, member: 24042"] Heard back from my son last night. He says you can make the teeth as thin as you want, as long as you make it from a material that has a yield strength higher than the force to be applied. I think that's true, but also not terribly useful since we can't select gears on that basis. He also said that the changes in tooth dimension and contact patch would tend to offset, but that they're unlikely to have a significant impact on overall strength due to their relatively small degree. That's kind of what I expected him to say. His final comment was that the manufacturing process probably has more to do with failure rates than anything else. In other words, if a given ring gear regularly breaks prematurely, buy better gears. NASCAR teams regularly use gears up to 6.30:1, so clearly you can combine super low gears with high power. [/QUOTE]
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Jeep Wrangler JK
JK Build Threads & Member's Rides
JK high school build
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