Radial truck centering brake assembly

In a railway car truck including a bolster having a pair of centrally located lateral openings and being supported in side frames between vertical spaced columns thereof, a longitudinally spaced wheelset composed of an axle with spaced apart wheels mounted thereon, a "C" shaped steering arm member with two side arms, a cross beam, a downwardly offset connecting post and pivotal connecting means at the extremity of the post, the steering arm member extending from the axle to the bolster where it is pivotally connected by the pivotal connecting means, a brake assembly including a brake beam supported on said side frames, operating cylinder and push rods, the improvement comprising said brake beam having upwardly extending lug means and the cross beam of the steering arm having downwardly extending lug means in interdigitating relationship with said upwardly extending lug means for engaging the steering arm with the brake assembly to restrain lateral movement of the brake beam relative to the steering arm.