A brake and actuator assembly is disclosed, and includes a brake having an actuating shaft operable to cause friction elements of the brake to be urged against a rotary braking member. The assembly also includes a brake actuating mechanism to which the shaft is operably connected for brake actuation. The shaft forms a splined connection, at a location spaced from the actuating mechanism, with a coupling device coupled to an output member of a power device, enabling the position of force application from the power device to the shaft to vary along the shaft to accommodate friction element wear in the brake. The line of force application between the output member and the shaft lies generally in a radial plane extending through the member, coupling device and splined connection.