Cup - Seiken Rubber

The "rubber cup" refers to a bowl-shaped seal—sometimes called a leather ring—that fits snugly inside hydraulic cylinders.

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Prevents brake fluid from leaking out and keeps moisture and air from entering the system. 2. Common Part Numbers & Identification

Seiken rubber cups are high-precision automotive seals essential for maintaining hydraulic pressure within a vehicle's braking and clutch systems. Primarily manufactured by the Japanese brand , these components are designed to prevent fluid leaks and ensure safe, responsive stopping power in both disc and drum brake assemblies. Core Functions in Hydraulic Systems

The Seiken Rubber Cup is a small, flexible cup made of rubber, used for polishing and cleaning teeth. It is typically attached to a low-speed handpiece or a prophylaxis angle, which is then used to apply a polishing agent to the teeth.

They are responsible for accurately transmitting pressure from the master cylinder to the brake shoes or pads.

Why the Seiken Rubber Cup is a Lab Essential You Didn’t Know You Needed

The Seiken Rubber Cup, also known as the Seiken cup or Japanese rubber cup, is a type of cup used in various applications, particularly in the field of dentistry and medicine.