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Old 05-28-2011, 08:21 PM   #46
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I am curious now. Why do we have such big conical/spur gears and such small pinion/bell gears? wouldn't the car be faster if the spur was smaller? For every revolution the bell makes the spur barely moves. Why cant we do this?
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Old 05-28-2011, 09:12 PM   #47
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I am curious now. Why do we have such big conical/spur gears and such small pinion/bell gears? wouldn't the car be faster if the spur was smaller? For every revolution the bell makes the spur barely moves. Why cant we do this?
It is all about gear ratio, our little engine spin very fast but the torque it makes is fairly little (hence you can stop it with your finger on the flywheel at idle), to counter that you need a small gear driving a much bigger gear, just like you are going up slope with your bike, will be be using the smallest gear on paddle and largest gear on the rear sprocket.
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Old 05-28-2011, 10:01 PM   #48
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Cool thanks!
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Old 05-29-2011, 09:18 AM   #49
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The clutch bell gear teeth are broached, there really isn't the space required to cut spiral/helical teeth here with the 'bell' part of the gear being in the way of the cutting tool.
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