A hoop, includes a connecting section, a fixing section and a hooping section, the fixing section is provided with a first receiving hole and a second receiving hole; and the fixing section is provided with an arch structure, the joint of the arch structure and the fixing section is provided with an abutting interface, the abutting interface is arranged on the side edge of the arch structure departing from the hooping section; and the fixing section is provided with a convex strengthening structure at the corner of the abutting interface.

A brake actuator includes a housing having a first housing component with a first annular flange and a second housing component with a second annular flange, wherein the first and second annular flanges are overlapping. A clamp ring extends circumferentially around the first and second housing components and engages the first and second annular flanges. The clamp ring includes a first end having a first tab and a second end having a second tab, wherein the second tab is spaced radially outwardly from and overlies the first tab. A deformable member couples the first and second tabs. A clamp ring, methods of manufacturing the clamp ring, and methods of assembling the brake actuator are also provided.