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ISO 7630:1985

Road vehicles — Elastomeric O-rings for hydraulic drum brake wheel cylinders using a petroleum base hydraulic brake fluid (service temperature 120 degrees C max.)

Jun 20, 1985

General information

90.20     Apr 15, 2026

ISO

ISO/TC 22/SC 33

International Standard

43.040.40     83.140.50  

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Scope

Specifies the performance test methods and requirements for elastomeric O-rings used in brake wheel cylinders. Applies to solid O-ring seals mounted stationary in the cylinder bore or on the movable piston of drum brakes. These seals shall be suitable for operation in a temperature range of -40 to +120 °C.

Life cycle

NOW

PUBLISHED
ISO 7630:1985
90.20 Standard under periodical review
Apr 15, 2026

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