Limits and fits for engineering Guide to tolerances, limits and fits for large diameters

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-09-2009

Publisher

British Standards Institution

Foreword
Section 1: Introductory
1 Scope
2 Normative references
3 Terms and definitions
4 A review of the problems
5 The practical effect of errors on tolerances and fits
Section 2: Limits and tolerances for large diameters
(19.69 in to 125 in)
6 Tolerance formula
7 Diameter steps
8 Fundamental inch tolerances
9 Fundamental deviations
10 Suggested associations of holes and shafts
Annexes
Annex A (informative) - Matched fits
Annex B (informative) - Graphical representation of tolerance
zones for holes and shafts
Bibliography

Provides guidance on tolerances, limits and fits for large diameters (19.69 in to 125 in). The components in large sizes are made to interchangeable as well as to matched fits.

This part of BS1916 gives guidance on tolerances, limits and fits for large diameters (19.69 in to 125 in).

In many industries, components in large sizes are made to interchangeable as well as to matched fits. There are many practical problems, however, in achieving interchangeable manufacture in large diameters, due mainly to difficulties of measurement.

Clause4 and Clause5 in Section1 discuss the known difficulties which might be encountered and draw attention to those tolerances and fits where the greater difficulties might be expected to arise. Section2 puts forward tables of tolerances, deviations and limits for shafts and holes.

It is strongly emphasized that these should be regarded as recommendations intended for trial purposes. They are published in the expectation that experience in their use will enable them to be confirmed or modified, and will help to bring to light deficiencies in measuring techniques.

An explanation of the system to which this standard forms an extension is contained in BS1916‑1.

Committee	TPR/1/10
DevelopmentNote	Supersedes BS 1916-3(1963) & 09/30192613 DC. (09/2009)
DocumentType	Standard
Pages	34
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 1916-3:1963

BS EN 20286-1:1993	ISO system of limits and fits ISO system of limits and fits. Bases of tolerances, deviations and fits
BS 2045:1965	Preferred numbers
BS 1916-2:2009	Limits and fits for engineering Guide to the selection of fits in BS 1916-1
ISO 286-1:2010	Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 1: Basis of tolerances, deviations and fits
BS EN 20286-2:1993	ISO system of limits and fits ISO system of limits and fits. Tables of standard tolerance grades and limit deviations for holes and shafts
ISO 286-2:2010	Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
BS 1916-1:2009	Limits and fits for engineering Guide to limits and tolerances

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BS 1916-3:2009

Limits and fits for engineering Guide to tolerances, limits and fits for large diameters

Table of Contents

Abstract

Scope

General Product Information

Standards Referencing This Book

Category

Subcategory