SBM Crank Identification Help!
I have 4 SBM cranks here and I do not have any way of knowing what they were used in.
Is there a chart somewhere showing casting numbers or a way to ID them?
1 is marked 2658278. 1.8 crank register. 2.49 main
1 has a partial number, 46577 on the number 2 main counterweight. 1.5 crank register. 2.50 main.
Last one has no number. It has a double roller crank sprocket. 1.8 crank register. 2.49 main.
I was able to ID this one:
1 is marked 3418640. 1.8 crank register. 2.78 main. This is a 360 cast crank.
Any help?