ISO 4156-3:2021

Name: ISO 4156-3:2021 — Straight cylindrical involute splines — Metric module, side fit — Part 3: Inspection
SKU: ISO 4156-3:2021
Price: 95400 RUB
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Straight cylindrical involute splines — Metric module, side fit — Part 3: Inspection

Название (английский):

ISO 4156-3:2021

Straight cylindrical involute splines — Metric module, side fit — Part 3: Inspection

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 53
Дата публикации:: 2 февраля 2021 г.
Издание:: ISO IS 4156 edition 2 version 1
ICS:: 21.120.30

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Описание (английский):

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.

Abstract

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Стандарты, упомянутые в описании

Overview

ISO 4156-3:2021 - "Straight cylindrical involute splines - Metric module, side fit - Part 3: Inspection" defines requirements and guidance for the inspection of straight (non‑helical) side‑fitting cylindrical involute splines. The standard specifies limiting dimensions, tolerances, manufacturing deviations and how those affect fits between mating coaxial spline elements. Linear dimensions are expressed in millimetres and angular dimensions in degrees. This second edition (2021) replaces the 2005 edition and is part of the ISO 4156 series.

Key topics and technical requirements

The document provides measurement methods, acceptance criteria and practical guidance, including:

Reference conditions, symbols and definitions used for spline inspection.

Quality features to be assessed: size (actual and effective), location, and form.

Methods of inspection for:

Size (choice of instruments; measuring actual vs effective size)
Location (effective axis, pitch cylinder axis, Fourier analysis, clamping systems)
Form (surface and tooth form deviations)

Measurement techniques using balls or pins, including selection, marking and calculation of ball/pin diameters for internal and external splines.

Measurement over k teeth (W) for external splines and guidance on choosing k.

Gauges: design, manufacturing tolerances, use (GO/NO‑GO), marking, inspection and allowed deviation allowances.

Measurement of spline deviations: total profile deviation (Fα), total pitch deviation (Fp) and total helix deviation (Fβ).

Annex material explaining influences of eccentricity and pitch deviation.

Practical applications and who uses it

Design engineers specifying spline fits and tolerances for shafts, hubs and power transmission components.

Manufacturers establishing inspection processes during production and final acceptance.

Quality and metrology teams performing dimensional checks, gauge inspections and reporting conformity.

Gauge makers designing GO/NO‑GO and master plug/ring spline gauges.

Maintenance and failure‑analysis specialists assessing wear, deformation and assembly issues.

Typical applications include gearboxes, drive shafts, automotive and industrial power transmission assemblies where controlled side fit, torque transmission and interchangeability are required.

Related standards

Other parts of the ISO 4156 series (design, manufacturing) for complete spline specifications.

References/bibliography include standards such as ISO 1328 (gear accuracy) and ISO 80000‑3 (symbols), which are relevant for measurement conventions and gear-related dimensional practices.

Using ISO 4156-3:2021 ensures consistent inspection methods, reliable fit performance and clearer supplier/acceptance criteria for metric, side‑fit involute splines.

ISO 4156-3:2021

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and who uses it

Related standards

Технические детали

ISO 4156-2:2005

Straight cylindrical involute splines — Metric module, side fit — Part 2: Dimensions

ISO 4156-3:2005

Straight cylindrical involute splines — Metric module, side fit — Part 3: Inspection

BS ISO 13289:2011

Recreational diving services. Requirements for the conduct of snorkelling excursions.

ISO 80000-3:2019/AMD1:2025

Amendment 1 - Quantities and units - Part 3: Space and time