18 : 18
NEMA 17 right-angle drive
m 1.5 · 20° · straight, AGMA 2005 proportions
Turn a stepper's output 90°: 18-tooth miters, 5 mm D-flat in, 8 mm out, tapped set screws.
Sample · m 0.8 · 20° · straight, AGMA 2005 proportions
Small robot · 2 : 1, 3 mm D-flat
A tiny module 0.8 pair for N20-size gear motors on 3 mm D-flat shafts.
What's in this design
Pinion · 15 teeth
- 15 teeth · outside Ø14.1, pitch Ø12 mm at the heel · pitch angle 26.57° · face 3.5 mm · mounting distance 13.11 mm · bore Ø3 mm D-flat · no hub
Gear · 30 teeth
- 30 teeth · outside Ø24.43, pitch Ø24 mm at the heel · pitch angle 63.43° · face 3.5 mm · mounting distance 8.84 mm · bore Ø4 mm · no hub
The mesh · m 0.8 · 20° · straight, AGMA 2005 proportions
- ratio 2 : 1 · shaft angle 90° · straight teeth
The link opens the pinion and gear in the Bevel Gear Designer's 3D view. Change the teeth, the module or pitch, the shaft angle, the bores or hubs, then download STL, STEP or a drawing.
More samples
Related bevel pairs
15 : 60
Hand drill · 4 : 1, module 2
m 2 · 20° · straight, AGMA 2005 proportions
The egg-beater drill's drive: a big crank gear spins a 15-tooth pinion four times as fast.
16 : 48
Hand crank · 3 : 1 on ½" hex
m 2.5 · 20° · straight, AGMA 2005 proportions
A crank-driven 3 : 1 for mills and hand generators, both gears on ½" hex.
16 : 48
Hand crank · threaded set screws and hub pins
m 2.5 · 20° · straight, AGMA 2005 proportions
3 : 1 on round shafts: the pinion's set screws thread into the hub, the gear is pinned through its hub.