Checking Brake Discs For Minimum Thickness

Information 

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Minimum thickness of PCCB brake disc

• For perforated brake discs, the minimum thickness -X-  must always be measured on the inner or outer friction surface track -arrows-  .
• Wear limit: The minimum brake disc thickness is stamped on the brake-disc chamber (e.g. Min. Th. 37.7 mm). 

Measure the brake disc thickness -X-  using a suitable micrometer screw or a brake disc gauge around the inner or outer friction surface tracks -Arrows-  .