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ISO 4156-3:2021

Straight cylindrical involute splines — Metric module, side fit — Part 3: Inspection ISO 4156-3:2021

Publication date:   Feb 2, 2021

General information

90.93   Standard confirmed   Jul 9, 2026

ISO

ISO/TC 14 Shafts for machinery and accessories

International Standard

21.120.30   Keys and keyways, splines

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Scope

This document provides data, guidance and requirements for the inspection of straight (non-helical) side fitting cylindrical involute splines.
Limiting dimensions, tolerances, manufacturing deviations and their effects on the fit between connecting coaxial spline elements are defined and tabulated. Linear dimensions are expressed in millimetres and angular dimensions in degrees.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4156-3:2005

NOW

PUBLISHED
ISO 4156-3:2021
90.93 Standard confirmed
Jul 9, 2026




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