AS/NZS 4968.3:2011

Sets out requirements for 50mm, 75mm and 90mm kingpins for use in articulated vehicles, B-doubles and road trains, in normal use on sealed and unsealed roads. Appendices cover mechanical properties, dimensional requirements for interchangeability, dynamic testing, and the attachment of the kingpin to the skid plate.

This Standard specifies requirements for 50 mm, 75 mm and 90 mm kingpins for use in articulated vehicles, B-doubles and road trains, in normal use on both sealed and unsealed roads.Requirements covering mechanical properties, dimensional standards for interchangeability and dynamic testing are provided in Appendix A.The determination of dynamic strength using finite element analysis is given in Appendix B.NOTES:1 Recommendations and requirements for fifth wheel assemblies on prime movers are given in AS/NZS 4968.2.2 Guidelines for the attachment of kingpin to skid plate are given in Appendix C.3 The method of calculation of D-values is given in AS/NZS 4968.1.

Originated as part of ASD14-1968, ASD15-1968, AS1771-1975, AS1772-1975, AS1773-1975, AS2175 Supplement 1-2002 and AS4235-1994.
Previous editions AS1771-1996, AS1773-1996, AS2175-1995, AS2175 Supplement 1-2002 and AS4235-1994.
AS1771-1996, AS1773-1996, AS2175-1995, AS2175 Supplement 1-2002 and AS4235-1994 jointly revised, amalgamated and redesignated in part as AS/NZS4968.3:2003.
Second edition 2011.