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.
Samples · Worm Gear Designer
18 worm drives, ready to open
3D-printed and industrial worm drives, metric and inch, from one start to many, self-locking or back-drivable. Each opens in the Worm Gear Designer with the worm and wheel in mesh, in 3D, every setting in place and ready to change. Looking for something else? See the timing pulley, sprocket and gear samples.
Use
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.
20 : 1
20 : 1 · ZI two-start, M3 hub
m 2 · 20° · ZI
A two-start involute (ZI) worm and a plain 40-tooth wheel whose hub holds an M3 set screw in a captured nut.
40 : 1
40 : 1 · module 3, keyed
m 3 · 20° · ZA
A module 3 single-start drive on keyed 12 mm and 20 mm shafts, the wheel throated to wrap the worm.
15 : 1
15 : 1 · normal module 4, ZI
m_n 4 · 20° · ZI
A two-start involute worm sized in the normal system (m_n 4), on keyed 16 mm and 25 mm shafts.
50 : 1
50 : 1 · module 5, ground ZK
m 5 · 20° · ZK
A module 5 worm with a disc-cutter-ground (ZK) thread driving a 50-tooth wheel on a keyed 30 mm shaft.
24 : 1
24 : 1 · 12 DP
12 DP · 20° · ZA
A 12 DP single-start worm on a ¼" shaft driving a 24-tooth wheel on ½", Boston Gear style.
40 : 1
15 : 1
6 : 1
6 : 1 · four starts
m 2 · 20° · ZA
A four-start worm for a fast, efficient 6 : 1 drive that turns either way.
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.
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.
50 : 1
50 : 1 lift · self-locking
m 2 · 20° · ZA
A slim single-start worm (q 20) whose small lead angle holds the load when the motor stops.
60 : 1
60 : 1 indexer · module 1
m 1 · 20° · ZA
A fine module 1 indexing drive: 60 : 1, self-locking, on 6 mm and 8 mm shafts.
40 : 1
40 : 1 lift · 16 DP
16 DP · 20° · ZA
A 16 DP self-locking lift worm (q 22) with a 40-tooth wheel on a ⅜" shaft.
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.
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.
15 : 1
15 : 1 · hubs with heat-set inserts
m 2 · 20° · ZA
Hubs on both parts with M3 set screws in heat-set inserts, for a printed two-start drive.
Designing is free; the STL and STEP files download from the app for tokens. Each drive was checked in the Worm Gear Designer and opens with no warnings.