10 : 1
10 : 1 · 16 DP on a 10 mm hex
16 DP · 20° · ZA
A four-start 16 DP worm and a wheel on a 10 mm hex bar, held by a DIN 471 retaining ring.
Sample · m 2 · 20° · ZA
15 : 1 · hubs with heat-set inserts
Hubs on both parts with M3 set screws in heat-set inserts, for a printed two-start drive.
What's in this design
Worm · 2 starts
- 2 starts, right hand · tip Ø24, pitch Ø20, root Ø15 mm · 33 mm long · bore Ø5 mm · hub on both ends, 1 × M3 set screw (heat-set insert)
Wheel · 30 teeth
- 30 teeth, throated · outside Ø66, pitch Ø60 mm · face 16.5 mm · bore Ø8 mm · hub on one end, 2 × M3 set screws (heat-set insert)
The mesh · m 2 · 20° · ZA
- ratio 15 : 1 · centre distance 40 mm · lead angle 11.31° · efficiency 78 % (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
40 : 1
40 : 1 · ISO 14 spline wheel
m 3 · 20° · ZA
A module 3 wheel on an ISO 14 6 × 23 × 26 spline with rings on both faces, the worm held by a set screw.
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.