Abstract: An Assembly (1) of a fixed caliper and hub bracket (101), comprises a fixed caliper (2) having a first vehicle-side elongated portion (7) that comprises a first disc entry-side tangential end (8) and a second disc exit-side tangential end (9); said portion (7) being suitable for facing an axial inner surface (10) thereof towards a first braking surface (4) of the disc (3); said first portion (7) housing at least one cylinder (11) suitable for receiving a piston; said caliper body (6) also comprises a second wheel-side elongated portion (12) that comprises a first disc entry-side tangential end (14) and a second disc exit-side end (15); said second portion (12) houses at least one cylinder (16); said first and second elongated portions (7, 12) being connected together by at least one bridge (17); said caliper body (6) also comprises at least one first seat (18) arranged in said first vehicle-side elongated portion (7) to receive a first connection element (19) to connect said fixed caliper to a hub bracket (10

Abstract: Disc brake calipers with a piston roll-back device capable of allowing accurate and repeatable roll-back of pistons and which are easy to construct and assemble are provided.

Abstract: An Assembly (1) of a fixed caliper and hub bracket (101), comprises a fixed caliper (2) having a first vehicle-side elongated portion (7) that comprises a first disc entry-side tangential end (8) and a second disc exit-side tangential end (9); said portion (7) being suitable for facing an axial inner surface (10) thereof towards a first braking surface (4) of the disc (3); said first portion (7) housing at least one cylinder (11) suitable for receiving a piston; said caliper body (6) also comprises a second wheel-side elongated portion (12) that comprises a first disc entry-side tangential end (14) and a second disc exit-side end (15); said second portion (12) houses at least one cylinder (16); said first and second elongated portions (7, 12) being connected together by at least one bridge (17); said caliper body (6) also comprises at least one first seat (18) arranged in said first vehicle-side elongated portion (7) to receive a first connection element (19) to connect said fixed caliper to a hub bracket (10

Abstract: Disc brake calipers with a piston roll-back device capable of allowing accurate and repeatable roll-back of pistons and which are easy to construct and assemble are provided.

Abstract: A device for controlling roll-back of a piston in a brake caliper includes a bush coaxial with and external to the piston. The bush has an outer sealing surface, and a scraper element seated in the caliper body acts against the sealing surface of the bush. An elastic element between the bush and the piston has a elastic constant selected so as to provide an elastic force on the piston substantially weaker that the axial friction force exerted by the scraper element. When the piston is pushed out of its piston seat, the piston packs the elastic means or abuts against the bush before relative sliding occurs between the scraper element and the outer sealing surface of the bush.

Abstract: A device for controlling the piston roll-back including a piston comprising a piston body (9) and a bush (10) coaxial to said piston body, said bush being arranged externally to said piston body and having an outer sealing surface, a scraper element (11) seated in a seat provided in the calliper body so as to act pressure-wise against said sealing surface of the bush, and elastic means provided between said bush and said piston body in reciprocal moving apart, said elastic means exhibiting a predetermined elastic constant that determines an elastic action on the piston substantially weaker that the axial friction action exerted by the scraper element so that, when the piston is stressed out of its piston seat, the piston body packs said elastic means or abuts against said bush before a relative sliding occurs between said scraper element and said outer sealing surface of the bush.