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SAE J700
Upper Coupler Kingpin - Commercial Trailers and Semitrailers
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STANDARD published on 1.11.2020
The information about the standard:
Designation standards: SAE J700
Publication date standards: 1.11.2020
SKU: NS-1010124
Country: American technical standard
Category: Technical standards SAE
Annotation of standard text SAE J700 :
This SAE Standard applies to upper coupler kingpins for commercial trailers and semitrailers in the unladen condition. See Figure 1. A 90 degree ± 1 degree angle extends (in all directions) from the centerline of the kingpin to the upper coupler plate surface within a 48.26 cm (19 inch) radius. The upper coupler plate surface should not bow downward (convex) more than 0.635 cm (1/4 inch) within a 48.26 cm (19 inch) radius or more than 0.3175 cm (1/8 inch) at a radius of 25.4 cm (10 inches) from the kingpin. The upper coupler plate surface should not bow upward (concave) more than 0.15875 cm (1/16 inch) within a 48.26 cm (19 inch) radius. (See Figure 2.)
SUBFILE: Commercial Vehicle
TYPE OF DOCUMENT: Ground Vehicle Standard
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