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Boxer style crankshafts ?

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Bille Floyd

Well-Known Member
Joined
Sep 26, 2019
Messages
1,195
Always wondered about this :
In a boxer style twin , like the 32Hp 3W-342 ; why are the pistons , and
connection rods , staggered slightly and use two bearings
on the crankshaft ? Why can ya just use one bearing on the crankshaft
and let the postons and connecting rods counterbalance each other ?
Couldn't ya get rid of the counterbalance weights on the crankshaft, that
way ?

https://3w-modellmotoren.de/produkt/3w-342i-b2-ts-cs/?lang=en
BTW -- there use to be a company that made a reduction for that
engine ; for use on ultralights !

Bille

3W-crankshaft_342i.jpg
 
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