u find the weight of your cranckshaft web with using the pro-e wildfire 5.0 its so easy in this software, just u draw and find the web weight otherwise u if u must need calculation then send me drawing on my mail id then i send u proper calculation, and please in replay you mention your mail id , thanks , best regards, RushinPatel rushinkumar083@yahoo.in

thanks for reply mate I need to find out web weight required to balance rotation of the crankshaft. i.e., based on the theoretical power output from the combustion chamber. Based on that i required to find out weight. Based on the mass value i have to design the crankshaft. Cheers... D.Nagarajan