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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.)

Publication date:   Jun 20, 1985

General information

90.60   Close of review   Sep 3, 2026

ISO

ISO/TC 22/SC 33 Vehicle dynamics and chassis components

International Standard

43.040.40   Braking systems | 83.140.50   Seals

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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

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PUBLISHED
ISO 7630:1985
90.60 Close of review
Sep 3, 2026