The invention relates to a track assembly (T1, T2) for a tracked vehicle (V). Said track assembly comprises a track support beam (10) configured to support road wheels (RW), a drive wheel member (DW), and a drive arrangement (D) for drive wheel member operation and an endless track (E) disposed around said road wheels (RW) and drive wheel member (DW). Said drive arrangement (D) comprises a brake arrangement (300) for braking the drive wheel member (DW), and a drive axle (40) coaxially arranged relative to a centre axis (Z) of said drive wheel member (DW) for rotating said drive wheel member (DW). Said brake arrangement (300) is configured to be journaled in bearings in connection to a portion of the drive axle (40). Said brake arrangement (300) comprises a torque arm (320) configured to be connected to said track support beam (10) so as to essentially prevent rotation of a brake housing (310) of said brake arrangement (300) about said centre axis (Z).