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• Worm Gear Pitch Diameter Chart
• Worm Gear Design
• Worm Gear Design Guide
• Gear Design Calculator

MITCalc - Worm Gear v.1.14 MITCalc - Worm Gear is an application that can help you with the geometric design and strength check of worm gears. The application is developed in MS Excel, is multi-language and supports Imperial and Metric units. This calculator generates Python script that instantly generates the outlines of two gears to be mounted on non-parallel, non-intersecting shafts. These gears are known as screw gears, and also crossed helical gears. The angle between screw gear axes is usually 90°, but it can be any number between 0° and 90°. Worm Gear Calculator software, free downloads and reviews at WinSite. Free Worm Gear Calculator Shareware and Freeware. Worm Gear Box Design Tutorial –Pitch Diameter of Worm Gear and Other Gear Design Calculation using AGMA Formulae Machine and Mechanism Design / By Suvo / Mechanical Engineering A worm gear box must contain a worm and a mating gear (helical gear) and normally the axis of the worm is perpendicular to the axis of the gear.

What is a gear calculator? The gear calculator is a comprehensive software which, after inputting various parameters related to gear calculations, computes on-line automatically gear sizes, strengths, working forces, tooth forms, backlash conversions, etc. Gear size calculator $. Gears & Sprockets Plastic Model Gears; Steel Model Gears; Industrial Grade Gears; Gear Racks; Sprockets & Chain. Worm and WormGear Design Equations and Calculator. Related Resources: gears. The axialpitch of the worm is equal to the circular pitch of the gear in the central plane; and 3) Only one set of change gears or one master lead cam is required for a given lead, regardless oflead angle, on commonly-used worm-producing equipment.

Input Parameters

Teeth type - common or spiral

Gear ratio and tooth numbers

Pressure angle (the angle of tool profile) α

Module m (With ANSI - English units, enter tooth pitch p = π m)

Unit addendum ha^*

Unit clearance c^*

Unit dedendum fillet r_f^*

Face widths b₁, b₂

Unit worm gear correction x

Worm size can be specified using the:

• worm diameter factor q
• helix direction γ
• pitch diameter d₁

Calculated parameters

Common gearing ZN

Spiral gearing ZA

Normal tooth pitch

Axial tooth pitch

Basic tooth pitch

Lead

Virtual/alternate number of teeth

Helix angle at basic cylinder

Worm pitch cylinder diameter

Worm gear pitch circle diameter

Worm outside cylinder diameter

Worm Gear Pitch Diameter Chart

Worm gear outside circle diameter

Worm root cylinder diameter

Worm Gear Design

Worm gear root circle diameter

Worm rolling(work) circle diameter

Worm gear rolling(work) circle diameter

Worm gear root circle diameter

Center distance

Chamfer angle of worm gear rim

Worm tooth thickness in normal plane

Worm gear tooth thickness in normal plane

Worm tooth thickness in axis plane

Worm gear tooth thickness in axis plane

Work face width

Contact ratio

ε_γ = ε_α + ε_β

where:

Minimum worm gear tooth correction

Worm Gear Design Guide

where:

Gear Design Calculator