Table of Contents

Abstract

Specifies classification, design, interchangeability of dimensions with tolerances, finish, and marking requirements for a coupling body for 70 mm and 110 mm towballs, which are used for the towing of trailers above 3.5 t in tension and compression. A pull-out test and a dynamic test are given in appendices.
RECONFIRMATION NOTICE
Technical Committee ME-053 has reviewed the content of this publication and in
accordance with Standards Australia procedures for reconfirmation, it has been
determined that the publication is still valid and does not require change.
Reconfirmed documents cannot be amended, but may be formally revised and a new
edition published.
Certain documents referenced in the publication may have been amended since the
original date of publication. Users are advised to ensure that they are using the latest
versions of such documents as appropriate, unless advised otherwise in this
Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for
reconfirmation on 8 January 2016.
The following are represented on Technical Committee ME-053:
Australian Industry Group
Australian Road Research Board
Australian Trucking Association
AUSTROADS
Commercial Vehicle Industry Association of Australia
Department of Defence (Australian Government)
Department of Infrastructure and Regional Development (Australian Government)
Institute of Road Transport Engineers
Municipal Works Operations Association
National Heavy Vehicle Regulator
New Zealand Heavy Haulage Association
New Zealand Truck and Trailer Manufacturers Federation
Road Transport Forum New Zealand
Society of Automotive Engineers Australasia
Truck Industry Council

Scope

This Standard specifies requirements for coupling bodies for ball couplings that are suitable for use in vehicles towing medium and heavy trailers used in normal conditions on sealed and unsealed roads. It covers two sizes of couplings, i.e. -
(a) 70 mm for up to 6 t ATM and 10 t ATM single trailer only; and
(b) 110 mm for trailers intended for use above 10 t ATM.

NOTE: Towball requirements are specified in AS 3819.1.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 15/04/2016 This standard has been reconfirmed in Australia in 2016 and remains current in New Zealand. Reconfirmation Notice 15/04/2016
Pages
ISBN
Committee	ME-053
Supersedes	DR 95283