Note: Nothing in this standard supercedes
applicable laws and regulations.
Note: In the event of conflict between the
English and domestic language, the English language shall take
precedence.
Purpose. This standard describes the
requirements of the jounce bumper in the shock absorber consisting
of materials according to paragraph 1.2.1.
Applicability.
Material. Types A and B describe the components
and the typical materials used for those components. Types A or
Type B shall be specified on the respective drawings and the
approved sources shall be listed in the MATSPC database.
Type A. Polyurethane-Elastomer of NDI-base
(Naphthalene-Diisocyanate). For additional springs and mechanical
high stress bumpers.
Type B. Polyurethane-Elastomer of MDI-Base (4.4
Diphenylmethane Diisocyanate). For bumpers with lower mechanic
stress.
Symbols. The material abbreviation according to
ISO 11469 is PUR-E.