Sentences with phrase «iron braking surfaces»

Perforated and ventilated, these have gray cast - iron braking surfaces and aluminum hubs, again to reduce unsprung and rotating mass.

Not exact matches

The coating on the discs makes the surface much harder than regular uncoated cast iron, and it therefore allows a more consistent braking force even as the brakes get hot.

A hot, high - pressure gun fires a tungsten and carbon compound onto the braking surface of a regular cast iron brake disc.

The basic Cayenne and S come with cast iron discs with six - pot calipers as standard, but there are two other brake options: Porsche Carbon Ceramic Brakes (PCCB), a familiar carbon - ceramic set - up and new coated cast iron discs called Porsche Surface Coated Brake (PSCB) with 10 - piston calipers.

This most elaborate of BMW brake concepts shares 2 - piece rotors with the 550i and 6 Series: an aluminum «hat» inner portion to reduce unsprung weight, and a cast - iron outer portion as the actual friction surface.

Although cast iron discs have a porous surface which give superior braking performance, such discs rust in the rain and become unsightly.