Its products based on type include spur, helical, double helical/herringbone, internal ring, bevel/spiral bevel ... for EMD & GE LOCO and Pinions & Pinion shafts for EMD & GE.

In accordance with the usual practice now, the fan is positively driven by bevel gears ... shifting collar that moves a sleeve with a spiral slot which surrounds the end of the armature shaft.

They are also reportedly stronger than either spiral or bevel gears. Figure 1.7.1 ... It has a degenerate cone with its apex on the gear itself, so the mating pinion gear cannot mate at a 90 degree ...

And then, they gave the concept bike a Pinion gearbox and Gates belt drive to yield a lower center of gravity for “better handling, protected gearing, and significant reductions in unsprung weight.“ ...