9 to eliminate oil between the lining and the drum 1 if a punched hole for the strut guide 4 34 is used also as the through aperture 9 and knock pin holes in the apply side bracket 4 are used also as the through apertures 8 it is not necessary to provide a special aperture forming process and the cost of manufacture can be reduced fig3 is a view taken along the direction of arrow c in fig1 to show an arrangement wherein the knock pin holes and the punched hole for the strut guide are used also as oil apertures when the brake band is used in the leading state as shown in fig4 in the non binding state the anchor side of the lining 2 is in contact with the surface of drum 1 and the clearance between the lining 2 and the drum 1 at the apply side is maximum thus the amount of oil film between the lining 2 and the drum 1 is greatest at the time of initial application of the brake to obtain a basically flat friction characteristic from the early stage of binding until the end of binding i e to mitigate the shock during speed change the invention assures that the great amount of oil contained on the apply side may be discharged removed within a short time more particularly in the brake band according to the present invention in order that the oil near the apply side may be rapidly eliminated the number of oil grooves formed in that area of the lining on which the bracket 4 on the apply side is mounted the width of the grooves or the number of through apertures 8 and 9 and the areas thereof are made greater.