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 2.5 · 20° · straight, AGMA 2005 proportions
Hand crank · threaded set screws and hub pins
3 : 1 on round shafts: the pinion's set screws thread into the hub, the gear is pinned through its hub.
What's in this design
Pinion · 16 teeth
- 16 teeth · outside Ø47.35, pitch Ø40 mm at the heel · pitch angle 18.43° · face 17.5 mm · mounting distance 76.29 mm · bore Ø8 mm · back hub Ø15.4 × 13.9 mm, 2 × M4 set screws (tapped)
Gear · 48 teeth
- 48 teeth · outside Ø120.82, pitch Ø120 mm at the heel · pitch angle 71.57° · face 17.5 mm · mounting distance 61.11 mm · bore Ø12 mm · back hub Ø68.1 × 31.5 mm, 2 hub pins Ø3 mm
The mesh · m 2.5 · 20° · straight, AGMA 2005 proportions
- ratio 3 : 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.
15 : 30
Small robot · 2 : 1, 3 mm D-flat
m 0.8 · 20° · straight, AGMA 2005 proportions
A tiny module 0.8 pair for N20-size gear motors on 3 mm D-flat shafts.