Ideal reduction screen

Worm-drive ratio

Inputs

Worm-wheel teethZwteethDeclared driven wheel tooth count for the ideal worm reduction.

Worm startsSstartsDeclared worm thread starts; it is the ideal driving tooth count.

Worm input speedninDeclared worm input speed for the ideal speed reduction.

Worm input torqueTinDeclared worm input torque before user-entered efficiency.

Declared worm-drive efficiencyη%User-entered drive efficiency; this workspace does not predict it.

Ideal worm reduction ratio

Ideal wheel output speed

Declared-efficiency wheel torque

175

i = Zw/S; nout = nin/i; Tout = Tin iη

A first-pass number, not a code check, certification, or approval. Read the method and its limits below. What this is and is not.

Calculation snapshot

Formula version 1.0.0

Worm-wheel teeth	50
Worm starts	1
Worm input speed	1400
Worm input torque	5
Declared worm-drive efficiency	70

Ideal worm reduction ratio	50 :1
Ideal wheel output speed	28 rpm
Declared-efficiency wheel torque	175 N·m

i = Zw/S · nout = nin/i · Tout = Tin iη

Worm Gear Motors ratio guidance: https://wormgearmotorsonline.com/worm-gear-ratio-explained/

This printout is a record of displayed inputs and deterministic formula output. It is not an approval, certification, or engineering conclusion.

Method

Calculate ideal worm ratio, output speed, and declared-efficiency torque from wheel teeth, worm starts, speed, and torque.

i = Zw/S; nout = nin/i; Tout = Tin iη

When

Don’t

This is a one-stage ideal tooth-ratio screen with a user-entered efficiency. It does not select a worm set, predict efficiency or self-locking, model tooth contact/stress, heat, lubrication, backlash, noise, duty, durability, safety, or product suitability.