Figure 1 shows a spline shaft and teeth together. The teeth of a hob form a trapezia with two lines from sides under angle @. See Figure 1, which shows a spline shaft and teeth, pictured together. If ...

It gives us an advantage, and a profit. “But, after some research of the milling splines we understood that the angle of the teeth of a hob can be changed and give us different curves of grinding ...