1. The performance and use of the leather bowl

According to the brake cylinder, the automobile brake cup is divided into the master cylinder cup and the wheel cylinder cup. The leather cups in the master cylinder and wheel cylinder must have certain elasticity, compression deformation and wear resistance to ensure that the brake film has a certain return ability and sealing ability to transmit hydraulic pressure during use. It has good resistance to hydraulic medium at high temperature (100~120℃ and low temperature (-30~50℃), and the leather cup is in contact with the brake fluid for a long time in the brake sealing device, so it is required to be resistant to the brake fluid (synthetic fluid). , mineral oil) has good anti-swelling property, and does not allow leakage at high temperature, low temperature and static room temperature. The main cylinder leather bowl and the auxiliary leather bowl are matched together, and the leather bowl is divided into two types: bowl type and ring type according to the cross section. The automobile hydraulic brake rubber cup is the main component of the automobile brake mechanism, which plays the role of sealing and reciprocating transmission in the automobile hydraulic power cylinder.

2. Material

Ethylene propylene diene monomer (EPDM)

3. Working conditions

Pressure: 10~70MPa

Working temperature: -40℃~150℃

Working medium: hydraulic oil, brake fluid

4. Design Standards

Automobile hydraulic brake rubber cup HG 2865-1997

5. Marking and ordering method

Leather bowl:

Leather bowl: