Ah, very enlightening! Thanks Kevin.
Dave W.
> Mark,
>
> It's explained very well here;
>
> http://automotivethinker.com/transmission/straight-cut-gears-vs-helical/
>
> Kevin V.
> Tuscarora, Pa
>
>
> On Feb 21, 2012, at 11:04 PM, Mark Haynes wrote:
>
>> OK racers,
>> Can someone explain to me why all of the racers want to use
>> Straight cut gears
>> in their transmissions? Straight cut gears (or spur gears) apply
>> the torque
>> load to only one tooth on each gear at a time, where helical gears
>> (such as
>> are commonly used in manual transmissions) apply the torque load to
>> two to
>> three teeth at a time. Thus the helical gears have less of a
>> tendency to get
>> damaged, where the spur gears take a beating.
>> So what's the attraction? (Plus straight cut gears are whiny!)
>>
>> Or is it just the way in which they are engaged, Dogs vs conical
>> synchros?
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