ISO 7630:1985Published

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

Véhicules routiers — Joints toriques à section circulaire en caoutchouc pour cylindres de roue de freins hydrauliques à tambour utilisant un liquide de frein à base pétrolière (température maximale d'utilisation 120 degrés C)

Abstract / 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.