Search Results

Standard

Recommended Practice for Measuring Fuel Economy and Emissions of Hybrid-Electric and Conventional Heavy-Duty Vehicles

2018-07-23

HISTORICAL

J2711_201807

This SAE Recommended Practice was established to provide an accurate, uniform and reproducible procedure for simulating use of heavy-duty hybrid-electric vehicles (HEVs) and conventional vehicles on dynamometers for the purpose of measuring emissions and fuel economy. Although the recommended practice can be applied using any driving cycle, the practice recommends three cycles: the Manhattan cycle, representing low-speed transit bus operation; the Orange County Transit Cycle, representing intermediate-speed bus operation; and the Urban Dynamometer Driving Schedule (UDDS) cycle representing high-speed operation for buses and tractor-trailers. This document does not specify which emissions constituents to measure (e.g., HC, CO, NOx, PM, CO2), as that decision will depend on the objectives of the tester.

Standard

Clearance Envelopes for Six-Bolt, Eight-Bolt, and Rear Truck Transmission Mounted Power Takeoffs

2017-11-03

CURRENT

J772_201711

This SAE Recommended Practice is intended as a guide toward standard practice but may be subject to frequent change to keep pace with experience and technical advances.

Standard

Torque Ratings for Power Take-off Mounting Pads

2017-09-19

CURRENT

J2662_201709

This SAE Recommended Practice is intended to serve as a reference for the amount of torque that a Power Take-Off can induce on the transmission mounting pad. This document will apply to six-bolt, eight-bolt, and rear mounted power take-offs.

Standard

Flywheel Dimensions for Truck and Bus Applications

2017-09-19

CURRENT

J1857_201709

Although not limited to, these flywheels are normally used on trucks considered as Medium-Duty (Class 6 and 7), as well as Heavy-Duty (Class 8) trucks.

Standard

Recommended Remanufacturing Procedures for Manual Transmission Clutch Assemblies

2017-08-22

CURRENT

J1915_201708

This SAE Recommended Practice is prepared as a guideline to improve and maintain the quality of remanufactured automotive products. Installation of remanufactured or rebuilt products is often an economical way to repair a vehicle even though they may not fully be equivalent to original equipment parts. Before processing any part, a remanufacturer should determine if the original design and present condition of the core are suitable for remanufacturing, so as to provide durable operation of the part as well as acceptable performance when installed in a vehicle. The remanufacturer should also carefully consider the safety aspects of the product and any recommendations of the original manufacturer related to remanufacturing or rebuilding their product.

Standard

Manual Transmission Shift Patterns

2017-08-15

CURRENT

J1608_201708

Provide standard shift pattern guidelines for manual transmission shift controls in light, medium, and heavy trucks and buses.

Standard

Pilot Bearings for Truck and Bus Applications

2017-08-14

CURRENT

J1731_201708

This SAE Recommended Practice describes STANDARD-DUTY and EXTREME-DUTY Pilot Bearing requirements and sizes for class 6, 7, and 8 on-highway trucks and buses that use diesel engines and manual transmissions. The recommendations may apply to a wide range of other pilot-bearing applications, such as agricultural, industrial, and construction equipment.

Standard

Pull-Type Clutch Transmission Installation Dimensions

2012-11-09

CURRENT

J1463_201211

This SAE Recommended Practice documents the typical transmission interface dimensions that are used with 14-in and larger pull-type clutches. See Figure 1.

Standard

Manual Transmission Shift Patterns

2012-11-09

HISTORICAL

J1608_201211

Provide standard shift pattern guidelines for manual transmission shift controls in light, medium, and heavy trucks and buses.

Standard

Nomenclature and Terminology for Truck and Bus Drive Axles

2012-07-02

CURRENT

J923_201207

This SAE Recommended Practice outlines basic nomenclature in common use for truck and bus drive axle designs. Over a period of years there have been many different designs introduced; however, for this report, only the most common have been selected and only their general construction is illustrated to show the nomenclature of the various parts.

Standard

Clearance Envelopes for Six-Bolt, Eight-Bolt, and Rear Truck Transmission Mounted Power Takeoffs

2004-07-23

HISTORICAL

J772_200407

This SAE Recommended Practice is intended as a guide toward standard practice but may be subject to frequent change to keep pace with experience and technical advances.

Standard

Torque Ratings for Power Take-off Mounting Pads

2003-07-25

HISTORICAL

J2662_200307

This SAE Recommended Practice is intended to serve as a reference for the amount of torque that a Power Take-Off can induce on the transmission mounting pad. This document will apply to six-bolt, eight-bolt, and rear mounted power take-offs.

Standard

Pull-Type Clutch Transmission Installation Dimensions

2003-04-24

HISTORICAL

J1463_200304

This SAE Recommended Practice documents the typical transmission interface dimensions that are used with 14-in and larger pull-type clutches. See Figure 1.

Standard

Flywheel Dimensions for Truck and Bus Applications

2003-04-23

HISTORICAL

J1857_200304

Although not limited to, these flywheels are normally used on trucks considered as Medium-Duty (Class 6 and 7), as well as Heavy-Duty (Class 8) trucks.

Standard

Recommended Practice for Measuring Fuel Economy and Emissions of Hybrid-Electric and Conventional Heavy-Duty Vehicles

2002-09-20

HISTORICAL

J2711_200209

This SAE Recommended Practice was established to provide an accurate, uniform and reproducible procedure for simulating use of heavy-duty hybrid-electric vehicles (HEVs) and conventional vehicles on dynamometers for the purpose of measuring emissions and fuel economy. Although the recommended practice can be applied using any driving cycle, the practice recommends three cycles: the Manhattan cycle, representing low-speed transit bus operation; the Orange County Transit Cycle, representing intermediate-speed bus operation; and the Urban Dynamometer Driving Schedule (UDDS) cycle representing high-speed operation for buses and tractor-trailers. This document does not specify which emissions constituents to measure (e.g., HC, CO, NOx, PM, CO2), as that decision will depend on the objectives of the tester.

Standard

Manual Transmission Shift Patterns

2001-09-07

HISTORICAL

J1608_200109

Provide standard shift pattern guidelines for manual transmission shift controls in light, medium, and heavy trucks and buses.

Standard

Nomenclature and Terminology for Truck and Bus Drive Axles

2001-08-03

HISTORICAL

J923_200108

This SAE Recommended Practice outlines basic nomenclature in common use for truck and bus drive axle designs. Over a period of years there have been many different designs introduced; however, for this report, only the most common have been selected and only their general construction is illustrated to show the nomenclature of the various parts.

Standard

Pilot Bearings for Truck and Bus Applications

2001-06-12

HISTORICAL

J1731_200106

This SAE Recommended Practice describes STANDARD-DUTY and EXTREME-DUTY Pilot Bearing requirements and sizes for class 6, 7, and 8 on-highway trucks and buses that use diesel engines and manual transmissions. The recommendations may apply to a wide range of other pilot-bearing applications, such as agricultural, industrial, and construction equipment.

Standard

Clearance Envelopes for Six-Bolt, Eight-Bolt, and Rear Truck Transmission Mounted Power Takeoffs

2000-09-07

HISTORICAL

J772_200009

This SAE Recommended Practice is intended as a guide toward standard practice but may be subject to frequent change to keep pace with experience and technical advances.

Standard

Information Relating to Duty Cycles and Average Power Requirements of Truck and Bus Engine Accessories

2000-08-31

CURRENT

J1343_200008

This report is intended to provide the information to estimate the accessory load of a typical heavy truck or bus. The components covered include: air compressors, alternators, refrigerant compressors, engine cooling fans and power steering pumps. The values show an estimate of the average power requirements and duty cycles for these accessories. This report does not address loads required for engine operation. Required systems include those needed for engine performance such as fuel pumps and electronic control modules (ECM).