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Homepage>BS Standards>43 ROAD VEHICLE ENGINEERING>43.040 Road vehicle systems>43.040.70 Couplings>BS AU 1c:1989 Specification for dimensions of '50' fifth wheel king pin for semi-trailers
immediate downloadReleased: 1989-03-31
BS AU 1c:1989 Specification for dimensions of '50' fifth wheel king pin for semi-trailers

BS AU 1c:1989

Specification for dimensions of '50' fifth wheel king pin for semi-trailers

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Standard number:BS AU 1c:1989
Pages:8
Released:1989-03-31
ISBN:0 580 16872 7
Status:Standard
DESCRIPTION

BS AU 1c:1989


This standard BS AU 1c:1989 Specification for dimensions of '50' fifth wheel king pin for semi-trailers is classified in these ICS categories:
  • 43.040.70 Couplings
  • 43.080.10 Trucks and trailers

This International Standard specifies the dimensions of the 50 [ϕ 50,8 mm (2 in)] fifth wheel coupling pin which is used for coupling semi-trailers to prime movers, taking into account the limitations of weight generally laid down by official requirements.

NOTE If, for extra heavy-duty vehicles, this coupling pin is not sufficient, an 90 [ϕ 89 mm (3.5 in)] fifth wheel coupling pin according to ISO 4086 shall be used.

In addition, this International Standard specifies the dimensional characteristics necessary for mounting and interchangeability.


Basic, mounting and interchangeability dimensions.