This clutch-brake range achieves the maximum torque for each of the different sizes, within the traditional GOIZPER clutch-brake design. Sizes 10, 18 and 36 are interchangeable with the same sizes of Series 5.0. Sizes 55, 75, 76, 77 and 78 have the same diameters as the respective 5.0 series but are wider and offer very high torques. They can be fitted with fixing rings on both the clutch and brake sides and are able to compensate for the wear of the seals