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21 Mechanical systems and components for general use
New standards
ISO 10828:2024
Worm gears — Worm profiles and gear mesh geometry
Scope:
This document describes the thread profiles of the five most common worm profile types and provides formulae of their axial profiles.
The five worm profile types covered in this document are designated by the letters A, C, I, K and N.
This document provides the formulae to calculate the path of contact, the conjugate profile of the worm wheel, the lines of contact, the radius of curvature and the velocities at points of contact. The application of those formulae to calculate parameters used in load capacity calculations are provided in 11.11.
The five worm profile types covered in this document are designated by the letters A, C, I, K and N.
This document provides the formulae to calculate the path of contact, the conjugate profile of the worm wheel, the lines of contact, the radius of curvature and the velocities at points of contact. The application of those formulae to calculate parameters used in load capacity calculations are provided in 11.11.
Base documents:
Replaces:
ISO/TR 10828:2015
ISO 3548-1:2022/Amd 1:2024
Plain bearings — Thin-walled half bearings with or without flange — Part 1: Tolerances, design features and methods of test — Amendment 1
Scope:
Amendment to ISO 3548-1:2022
Base documents:
Replaced standards
ISO/TR 10828:2015
Worm gears -- Worm profiles and gear mesh geometry
Scope:
ISO/TR 10828:2015, thread profiles of the five most common types of worms at the date of publication are described and formulae of their axial profiles are given.
The five worm types covered in this technical report are designated by the letters A, C, I, K and N.
The formulae to calculate the path of contact, the conjugate profile of the worm wheel, the lines of contact, the radius of curvature and the velocities at points of contact are provided. At the end the application of those formulae to calculate parameters used in load capacity calculations are provided.
The five worm types covered in this technical report are designated by the letters A, C, I, K and N.
The formulae to calculate the path of contact, the conjugate profile of the worm wheel, the lines of contact, the radius of curvature and the velocities at points of contact are provided. At the end the application of those formulae to calculate parameters used in load capacity calculations are provided.
Base documents:
Replaced:
ISO 10828:2024