GMW GMW15478 PDF

This specification establishes the webbing requirements for 2-point safety belt assemblies used in GM vehicles. It defines key physical and functional requirements that are intended to drive commonality across GM vehicles worldwide and interchangeability between suppliers' systems worldwide. The common functions, performance, reliability, and validation required of the webbing component are defined in this document.

This specification applies to safety belt webbing used as buckle straps, and in 2-point safety belt assemblies.

Material Description. This specification describes a narrow fabric woven with continuous yarns and finished selvages suitable for automotive safety belt webbing. All safety belt webbings must meet all applicable laws and regulations in addition to this specification. The webbing described in this specification is only intended for use with buckle straps and 2-point safety belt assemblies.

Symbols. Not applicable.

Applicability. Webbing described in this specification is classified as being either:

• 30 kN webbing (WWNSAD), high strength webbing for use in most buckle strap applications; 30 kN webbing is thicker than standard webbing, or

• 27 kN webbing (WWNSB and WWNSR) standard strength webbing for use in most 2- point applications.

Remarks. Safety belt webbing is a textile product that is an integral component of a safety belt assembly. Vehicle safety belts are intended to provide injury protection benefit to occupants of the vehicle in the event of a crash. Their primary function is to restrain an occupant (or child seat), and to reduce the risk or severity of injury by managing the occupant's kinetic energy.

Safety belt webbing must function in harmony with the rest of the safety belt subsystem, be as comfortable and unobtrusive as practicable, and be in visual harmony with the interior theme of the vehicle.

Webbing must also comprehend the differences in governmental and market requirements of the different countries in which it is sold.

In the event of a conflict between this specification and the documents cited herein, the text of this specification takes precedence. Nothing in this specification, however, supercedes applicable laws and regulations unless a specific exemption has been obtained.