Angular gear pair

grabcad

The pinion measures 1.75 mm in diameter with an alpha angle of 20° and a beta angle of 26°R, along with a gamma angle of 60°. It features z1=10 teeth on its first flank and z2=80 teeth on the second flank, while x1=0.5000 and x2=0.0000 represent the distances between them. Both flanks have a clearance of 0.05 mm in addition to a lead crown of 0.05 mm. The pinion has a sharp cutter wheel with a tip fillet of 0.38*1.75 mm, while the gear has a rack cutter with the same tip fillet size. The conjugate action law is obeyed by both the pinion and gear flanks. A sharp cutter fillet provides marginally more clearance for the pinion tooth in the gear tooth space at its bottom. I'm 3D printing both parts on an Ultimaker II in ABS with a 1:1 ratio. This is not a bevel gear pair, but rather a crown gear set. The pinion can be moved along its axis, while only the gear needs to be axially adjusted or shimmed for proper fitment. Crown gears have a load capacity of 85-90% compared to bevel gears of similar size, but their adjustment is significantly simpler. Due to the extensive data and large number of points used in computing the surfaces, the accuracy is quite high.