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Standard

Best Practices to Define, Dimension, and Measure Disc Brake Plates for Manufacture

2018-01-17
WIP
J3167
Best Practices for defining the dimensional requirements of backing plates on the drawings themselves, and defining the measuring procedures used to validate those dimensions. The proposed standard employs already established methods such as geometric dimensioning and tolerancing (GD&T), including instruction on its proper application to features specific to backing plates. Current ‘best practices’ of design and drafting in our industry are similarly highlighted; drawing clarity, revision control, and dimensioning for both function and manufacturability. Generic examples are used to illustrate both the advantages of best drafting practices, and the potential failure modes that can result from poor drafting practices. The standard also proposes the best methods of measurement required to properly validate requirements such as feature size and location, surface roughness, plate flatness and bow shape
Standard

ABS Exciter Ring Location Standardization

2018-01-16
WIP
J1730
This SAE Recommended Practice establishes the Antilock Brake System [ABS] sensor interface and envelope dimensions for standardizing the location of the ABS rings mounted on the inner end of spoke wheels, hubs and hub-rotor assemblies on the following axle designations. a. FF b. FL c. FC d. FH e. L f. R g. U h. W j. N k. P
Standard

Inboard Mounted Disc Brake Rotor/Disc Wheel Hub Interface Dimensions - Commercial Vehicles

2018-01-16
WIP
J2696
This SAE Recommended Practice establishes dimensions and tolerances for the interface between inboard mounted disc brake rotors and disc wheel hubs. The geometric features described in this document are shown at true position. This document is intended for inboard mounted disc brake rotors and disc wheel hubs for Class 5, 6, 7, and 8 commercial vehicles. Special and less common applications are not covered.
Standard

Tolerances, Carbon and Alloy Steel Tubing

2018-01-16
WIP
AMS2253F
This specification covers established inch/pound manufacturing tolerances applicable to carbon and alloy tubing ordered to inch/pound dimensions. These tolerances apply to all conditions unless otherwise noted. The term 'excl' is used to apply only to the higher figure of the specified range.
Standard

Wing Inspection Lights - Design Criteria

2018-01-15
WIP
ARP4087D
This SAE Aerospace Recommend Practice (ARP) is intended to cover the external lights on fixed wing aircraft for illuminating the wing leading edge and engine nacelles and the upper surfaces of the wing. The addition of an ice detection system should be implemented when the areas to inspect are not visible from the aircraft cockpit. It is not intended that this Recommended Practice require the use of any particular light source such as Halogen, LED or other specific design of lamp.
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