The teeth of teeth of involute gears hobs and teeth for involute spline shaft hobs have a trapezoidal profile. In the U.S. a huge volume of good quality hobs are produced, and... Search. Search.

Contributor Mark Grizotsky has developed another timely insight: “When tool-designers develop roughing hobs for milling roughing straight-side spline shifts, they must remember this about the wear of ...

C4 transmissions prior to 1970 had .788-inch, 24-spline input shafts. In 1970, Ford went to a .839-inch, ... a 157-tooth and a larger 164-tooth along with a larger bellhousing.