Disc brake having an electromotively actuated adjusting system

A pneumatically operated disc brake, comprising:

• a caliper extending over a brake disc;
• a brake application device having a rotary lever, the brake application device displacing brake pads against the brake disc;
• an adjusting system that compensates for at least one of brake pad wear and brake disc wear, wherein the adjusting system includes at least one electric motor to drive the adjusting system;
• wherein the at least one electric motor is arranged on the caliper such that it is accessible from an exterior of the caliper, the at least one electric motor being drivingly connected with components of the adjusting system arranged within the caliper;
• wherein the driving connection includes a shaft that penetrates a wall of the caliper and extends through a bore in the rotary lever of the brake application device.

A wear compensation adjusting system for use with a disc brake having a caliper that extends over a brake disc and a rotary lever brake application device for applying the brake pads against the brake disc, the wear compensation adjusting system comprising:

• a first electric motor adapted to be arranged on the caliper so as to be externally accessible;
• a first wear adjusting device adapted to be arranged within the caliper;
• and
• a drive connection extending between the first wear adjusting device within the caliper and the first electric motor.