SAE J700_201107 PDF
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Upper Coupler Kingpin – Commercial Trailers and Semitrailers(STABILIZED Jul 2011)
Description
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 in) radius. The upper coupler plate surface should not bow downward (convex) more than 0.635 cm (1/4 in) within a 48.26 cm (19 in) radius or more than 0.3175 cm (1/8 in) at a radius of 25.4 cm (10 in) from the kingpin. The upper coupler plate surface should not bow upward (concave) more than 0.15875 cm (1/16 in) within a 48.26 cm (19 in) radius. (See Figure 2.)
NOTE—For recommended performance, see SAE J133.
History
| J700_202011 | 2020-11-12 | Latest | Revised |
| J700_201107 | 2011-07-13 | Historical | Stabilized |
| J700_200104 | 2001-04-27 | Historical | Reaffirmed |
| J700_198506 | 1985-06-01 | Historical | Revised |
| J700B_197001 | 1970-01-01 | Historical | Revised |
| ISSUING COMMITTEE | Truck and Bus Total Vehicle Steering Committee |
|---|---|
| DATE | 2011-07-13 |
| DOI | |
| ISCURRENT | |
| PAGE | 4 |
| PUBLISHER | SAE International |
| REVISED | STABILIZED |
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