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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. Purpose Provide dimensional guidelines for current and future designs and thus promote interchangeability between various clutch and transmission combinations. Due to the variety of clutches and transmission mounted clutch housings, no standard clearance envelope can be established without imposing design restrictions. It is recommended that any specific combination be verified for clearance before incorporating in design.
Standard

Automotive Pull-Type Clutch Terminology

1985-01-01
HISTORICAL
J1479_198501
This SAE Standard describes the terms or names of the parts, characteristics, and parameters of automotive pull-type clutches used in trucks, and of vehicle apparatus or components related to the pull-type clutch.
Standard

Automotive Pull-Type Clutch Terminology

1999-09-21
HISTORICAL
J1479_199909
This SAE Standard describes the terms or names of the parts, characteristics, and parameters of automotive pull-type clutches used in trucks, and of vehicle apparatus or components related to the pull-type clutch.
Standard

Automotive Pull-Type Clutch Terminology

2012-11-09
CURRENT
J1479_201211
This SAE Standard describes the terms or names of the parts, characteristics, and parameters of automotive pull-type clutches used in trucks, and of vehicle apparatus or components related to the pull-type clutch.
Standard

Heavy Truck and Bus Retarder Downhill Performance Mapping Procedure

2000-05-01
CURRENT
J1489_200005
The procedure covers the estimation of the total retardation capability available to a specific vehicle from: Natural retardation (rolling resistance, aerodynamic drag, etc). Engine drag Engine, integral automatic transmission, driveline or trailer-axle retarders It assumes that foundation brakes are not used for maintaining speed on long mountain descents. Retardation is rated in terms of the maximum grades on which stable control speeds can be maintained for each gear over the range of highway speeds appropriate to that gear. For each gear, the calculation procedure determines maximum grades for at least four values of control speed ranging from the vehicle velocity corresponding to full load governed engine rpm, to the vehicle velocity corresponding to the engine rpm at minimum (idle) speed. In addition, the calculation procedure provides information on the total retarding power available for each gear.
Standard

Engine Retarder Dynamometer Test and Capability Rating Procedure

2012-07-02
CURRENT
J1621_201207
This SAE Recommended Practice has been adopted by SAE to specify: A basis for net engine retarder power rating Reference inlet air test conditions A method for correcting observed engine retarder power to reference conditions A method for determining net engine retarder power with a dynamometer
Standard

Engine Retarder Dynamometer Test and Capability Rating Procedure

2005-12-12
HISTORICAL
J1621_200512
This SAE Recommended Practice has been adopted by SAE to specify: a. a basis for net engine retarder power rating; b. reference inlet air test conditions; c. a method for correcting observed engine retarder power to reference conditions; and d. a method for determining net engine retarder power with a dynamometer.
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).
Standard

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

1981-07-01
HISTORICAL
J1343_198107
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).
Standard

Axle Efficiency Test Procedure

2001-04-27
CURRENT
J1266_200104
Data from this SAE Recommended Practice permit mapping axle efficiency and/or waste energy over the operating range of trucks, busses, and other highway vehicles based on truck chasses.
Standard

Axle Efficiency Test Procedure

1979-06-01
HISTORICAL
J1266_197906
Data from this SAE Recommended Practice permit mapping axle efficiency and/or waste energy over the operating range of trucks, busses, and other highway vehicles based on truck chasses. The procedure can be applied to single axles, tandem axles as a system, or other systems, by combining separate tests, such as tests of the front axle and power divider and rear axle of tandem or tri-drive type.
Standard

Axle Efficiency Test Procedure

1990-06-01
HISTORICAL
J1266_199006
Data from this SAE Recommended Practice permit mapping axle efficiency and/or waste energy over the operating range of trucks, busses, and other highway vehicles based on truck chasses. The procedure can be applied to single axles, tandem axles as a system, or other systems, by combining separate tests, such as tests of the front axle and power divider and rear axle of tandem or tri-drive type.
Standard

Manual Transmission Efficiency and Parasitic Loss Measurement

2000-11-02
HISTORICAL
J1540_200011
Because of the intense focus on fuel economy and fuel emission standards, it has become imperative to optimize vehicle drivetrains. In light of this, component efficiencies have become an important factor in the drivetrain decision-making process. It has therefore become necessary to develop a universal standard to judge transmission efficiency. This SAE Recommended Practice specifies a test procedure which maps torque transmittal efficiency and parasitic losses for manual transmissions. The application of this document is intended for manual transmissions used in light (class 4) through heavy truck applications with both simple and compound ratio structures. This document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine the overall transmission efficiency. This test is used to evaluate all forward gears; testing in reverse is optional.
Standard

Manual Transmission Efficiency and Parasitic Loss Measurement

1992-04-01
HISTORICAL
J1540_199204
Because of the intense focus on fuel economy and fuel emission standards, it has become imperative to optimize vehicle drivetrains. In light of this, component efficiencies have become an important factor in the drivetrain decision-making process. It has therefore become necessary to develop a universal standard to judge transmission efficiency. This SAE Recommended Practice specifies a test procedure which maps torque transmittal efficiency and parasitic losses for manual transmissions. The application of this document is intended for manual transmissions used in light (class 4) through heavy truck applications with both simple and compound ratio structures. This document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine the overall transmission efficiency. This test is used to evaluate all forward gears; testing in reverse is optional.
Standard

Manual Transmission Efficiency and Parasitic Loss Measurement

2012-11-09
CURRENT
J1540_201211
Because of the intense focus on fuel economy and fuel emission standards, it has become imperative to optimize vehicle drivetrains. In light of this, component efficiencies have become an important factor in the drivetrain decision-making process. It has therefore become necessary to develop a universal standard to judge transmission efficiency. This SAE Recommended Practice specifies a test procedure which maps torque transmittal efficiency and parasitic losses for manual transmissions. The application of this document is intended for manual transmissions used in light (class 4) through heavy truck applications with both simple and compound ratio structures. This document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine the overall transmission efficiency. This test is used to evaluate all forward gears; testing in reverse is optional.
Standard

Rear Wheel Splash and Stone Throw Protection

2002-08-23
HISTORICAL
J682_200208
For guidance only in regard to highway commercial motor vehicles where protection to the rear against rear wheel splash and stone throw is deemed necessary, the following clearance specifications are recommended.
Standard

Rear Wheel Splash and Stone Throw Protection

1984-10-01
HISTORICAL
J682_198410
For guidance only in regard to highway commercial motor vehicles where protection to the rear against rear wheel splash and stone throw is deemed necessary, the following clearance specifications are recommended.
Standard

Certificates of Maximum Net Horsepower for Motor Trucks and Truck Tractors

1965-02-01
HISTORICAL
J690_196502
[In the report of the SAE Motor Truck Rating Committee on Ability Ratings published in the January 1940 issue of the SAE Journal, it was recommended that pounds per certified net brake horsepower delivered to the clutch or its equivalent be used as the index of the potential ability of a motor truck or combination. This report defined the term "certified net brake horsepower" in detail and recommended that certain data be provided to support the certification. The accompanying forms provide a method for the presentation of the data specified.]
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