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Old 10-16-2011, 07:08 AM   #1
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Default Counter balance?

I am wonder as to how one calculates the counter balance weight on the crank? Do you add the weight of the connecting rod + 1/2 Crank?


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Old 10-18-2011, 07:14 AM   #2
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Default Re: Counter balance?

Rough and ready........... the counter weights equal half the weight of the moving parts.

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Bob


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Old 10-18-2011, 04:40 PM   #3
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Default Re: Counter balance?

The answer depends on the configuration of the crank, and engine. Inline or V, what angle of Vee, plane of crank 1, 2, 3. On a single cylinder engine, counterweight = 100% of the rod +50% of the piston mass. There is really much math involved in setting the mass of the counter weigh, RPM is a large factor, rod lenght, on and on.
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Old 10-19-2011, 02:35 PM   #4
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Default Re: Counter balance?

Thank you!
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