Originally Posted by
Roelof
If you want to lighten a shaft for less mass rotation you must take it from the outside and not from the center....
Thats why MAX is still using 14mm crankshafts and not the 14.5mm
Actually it does save time and tools to create such a shape directly in the crankshaft. Producing in large numbers (60.000 a year regarding their promo movie) a short machine time and less maintenance and recalibration is wanted
Wow hang on rotating mass is weight transfered from the centre out they mill the centre because it has a similar effect it lightens the crank which in turn reduces rotating mass.
As far as saving tooling. how is that possible it requires more programing additional cutters and time aslo machine servicing to cut the shape direrectly
calibration is required for both methods .
Max power used the 14mm crank because they required more mass on the delivery end so that there efforts to balance the crank was easier to achieve .