| 摘要 |
A vehicle braking unit (3) comprising a support (5) designed to be positioned in use close to an element to be braked (4), braking elements (6) which are carried in a movable way by the support, actuation elements (7) which are carried by the support for pushing the braking elements against the element to be braked and first and second guide surfaces (8,9) that are integral, respectively, to the braking elements and to the support, and that cooperate together to guide and support the braking elements when they are moved towards the element to be braked by the activation of the actuation elements; the first and/or the second guide surfaces (8,9) are covered by a sliding coating (16) consisting of a polymeric resin layer with solid lubricants and/or anti-friction materials being dispersed therein, that has been cured at a temperature greater than 300°C. |
