5 : 1
5 : 1 · six starts
m 1.5 · 20° · ZA
A six-start module 1.5 worm and a 30-tooth wheel: 5 : 1 at a steep lead angle.
Sample · m 2 · 20° · ZA
6 : 1 · four starts
A four-start worm for a fast, efficient 6 : 1 drive that turns either way.
What's in this design
Worm · 4 starts
- 4 starts, right hand · tip Ø20, pitch Ø16, root Ø11 mm · 32 mm long · bore Ø5 mm · no hub
Wheel · 24 teeth
- 24 teeth, throated · outside Ø54, pitch Ø48 mm · face 15 mm · bore Ø8 mm · no hub
The mesh · m 2 · 20° · ZA
- ratio 6 : 1 · centre distance 32 mm · lead angle 26.57° · efficiency 88 % (μ 0.05) · back-drivable
The link opens the worm and wheel in the Worm Gear Designer's 3D view. Change the module or pitch, the starts, the wheel's teeth, the bores or hubs, then download STL or STEP.
More samples
Related worm drives
12 : 1
12 : 1 · 12 DP three-start
12 DP · 20° · ZA
A three-start 12 DP worm driving a 36-tooth wheel, 12 : 1, on ¼" and ½" shafts.
30 : 1
30 : 1 · module 2, one start
m 2 · 20° · ZA
The starter drive: a single-start module 2 worm turning a 30-tooth throated wheel, 30 : 1.
40 : 1
40 : 1 · module 1.5 on D-flat shafts
m 1.5 · 20° · ZA
A printable 40 : 1 reduction on 5 mm and 8 mm D-flat shafts, with 0.1 mm print compensation on both parts.