The lining or functional body (10) consists a carrier (11) in form of a ground plate, for example a carrier plate or a carrier sheet, of a thin-walled rough ground carrier (15; 15') made of a metal sheet or of another appropriate material placed on the carrier (11; 11'), of a rough ground (20') made of a support base (20; 20'; 21) sintered on the surface (15a; 15'a) of the rough ground carrier (15; 15') which is turned away from the lining carrier (11; 11'), this support base being made of single moulded bodies (22') with undercuts, recesses or the like which are positively and frictionally connected with the rough ground carrier (15; 15'), and of a functional block (25; 25') fixed on the rough ground carrier (15; 15') with the rough ground (20'), this functional block being made of a friction material, a synthetic material, in particular of such a synthetic material which is not appropriate to be glued together or to be applied in another manner, for example of a polymer or teflon, whereby the rough ground carrier (15; 15') is fixed on the lining carrier (11; 11') by means of a welded, riveted or glued joint (30; 30') or other connecting procedures, such as engraving.