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Truck Tractor Semitrailer Interchange Coupling Dimensions

Truck and Bus Total Vehicle Steering Committee
  • Ground Vehicle Standard
  • J701_201708
  • Current
Published 2017-08-09 by SAE International in United States
The information in this SAE Information Report is the result of studies by the Automobile Manufacturers Association, American Trucking Association, and Truck Trailer Manufacturers Association, to achieve interchangeability of equipment which will comply with the legal dimensional limitations for the majority of states and yet permit increased loading space within these dimensions. This in no way supersedes other information in the SAE Handbook on this subject. Some cases will require more care in application allowing splash shield clearance at trailer support interference points and positioning fifth wheel to allow trailer swing clearance on an 11% grade. All dimensions are given in inches. Table 1 and Figures 1 and 2 show basic requirements for interchangeability of truck tractor and semitrailer equipment. Figure 3 shows the interchangeability of the doubles converter dolly. The formulas for determining LWC, OAL and CFW are: where: FW = fifth wheel advance R = Rear axle tire radius LWC = 90 in = 64 in (short trailers specifically intended for use with two axle tractors) W = 96 in = 102 in…
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Truck Tractor Semitrailer Interchange Coupling Dimensions

Truck and Bus Total Vehicle Steering Committee
  • Ground Vehicle Standard
  • J701_201401
  • Historical
Published 2014-01-03 by SAE International in United States
The information in this SAE Information Report is the result of studies by the Automobile Manufacturers Association, American Trucking Association, and Truck Trailer Manufacturers Association, to achieve interchangeability of equipment which will comply with the legal dimensional limitations for the majority of states and yet permit increased loading space within these dimensions. This in no way supersedes other information in the SAE Handbook on this subject. Some cases will require more care in application allowing splash shield clearance at trailer support interference points and positioning fifth wheel to allow trailer swing clearance on an 11% grade. All dimensions are given in inches. Table 1 and Figures 1 and 2 show basic requirements for interchangeability of truck tractor and semitrailer equipment. Figure 3 shows the interchangeability of the doubles converter dolly. The formulas for determining LWC, OAL and CFW are: where: FW = fifth wheel advance R = Rear axle tire radius LWC = 90 in = 64 in (short trailers specifically intended for use with two axle tractors) W = 96 in = 102 in…
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Kingpin Wear Limits - Commercial Trailers and Semitrailers

Truck and Bus Total Vehicle Steering Committee
  • Ground Vehicle Standard
  • J2228_201109
  • Current
Published 2011-09-12 by SAE International in United States
This SAE Recommended Practice applies to upper coupler kingpins for commercial trailers and semitrailers conforming to the dimensional requirements of SAE J700 when new and originally installed. The dimensions of SAE J700 are the frame of reference for this document.
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Sound Level for Truck Cab Interior

Truck and Bus Total Vehicle Steering Committee
  • Ground Vehicle Standard
  • J336_201109
  • Current
Published 2011-09-12 by SAE International in United States
This SAE Recommended Practice describes the equipment and procedure for determining the truck cab interior sound level over the upper half of the engine speed range. This practice applies to motor trucks and truck-tractors and does not include construction and industrial machinery.
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Fifth Wheel Kingpin, Heavy-Duty - Commercial Trailers and Semitrailers

Truck and Bus Total Vehicle Steering Committee
  • Ground Vehicle Standard
  • J848_201109
  • Current
Published 2011-09-12 by SAE International in United States
This SAE Recommended Practice applies to fifth wheel kingpins for heavy-duty commercial trailers and semitrailers, used for off highway operation or in hauling heavy loads (see Figure 1.)
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Steady-State Circular Test Procedure for Trucks and Buses

Truck and Bus Total Vehicle Steering Committee
  • Ground Vehicle Standard
  • J2181_201109
  • Current
Published 2011-09-12 by SAE International in United States
This test procedure is used to determine the steady-state directional control response of vehicles by measuring steady-state cornering behavior. Due to the wide range of operational conditions to which a vehicle can be subjected, the results of this testing do not provide a complete description of a vehicle's total dynamic behavior; in particular, the procedure does not test the vehicle's response during transient maneuvers. To fully assess a vehicle's total dynamic behavior, it would be necessary to conduct other test procedures in order to evaluate the vehicle's performance as a whole. The extent of instrumentation and the required accuracy of the measurement will be dependent on the goals of the personnel conducting the test. If it is desired simply to determine the general performance characteristics of a vehicle, then this test can be conducted with minimal instrumentation and test item preparation.
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Exterior Sound Level for Heavy Trucks and Buses

Truck and Bus Total Vehicle Steering Committee
  • Ground Vehicle Standard
  • J366_201109
  • Current
Published 2011-09-12 by SAE International in United States
This SAE Standard establishes the test procedure, environment, and instrumentation for determining the maximum exterior sound level for highway motor trucks, truck tractors, and buses. The test results obtained by this test procedure give an objective measure of the maximum noise level emitted by vehicles under a prescribed condition. A subjective rating of the annoyance caused by vehicles in use may not be directly related to this type of noise level measurement.
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Trailer Tow Bar Eye and Pintle Hook/Coupler Performance

Truck and Bus Total Vehicle Steering Committee
  • Ground Vehicle Standard
  • J847_201107
  • Current
Published 2011-07-13 by SAE International in United States
This SAE Recommended Practice applies to highway trailer tow bar eye-type applications, including multiple trailers.
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Fifth Wheel Kingpin Performance – Commercial Trailers and Semitrailers

Truck and Bus Total Vehicle Steering Committee
  • Ground Vehicle Standard
  • J133_201107
  • Current
Published 2011-07-13 by SAE International in United States
The purpose of this SAE Recommended Practice is to establish test procedures and minimum performance standards for kingpins and their supporting structure manufactured to SAE specifications. The dimensions shown in SAE J700 will permit the establishment of standard clearances in the installed condition which, in turn, will permit fifth wheel manufacturers to design their products to establish interchangeability with any kingpin made and installed to the SAE specification.
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Upper Coupler Kingpin – Commercial Trailers and Semitrailers

Truck and Bus Total Vehicle Steering Committee
  • Ground Vehicle Standard
  • J700_201107
  • Current
Published 2011-07-13 by SAE International in United States
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.
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