... small, high intensity, over loading capability and not easy to distort Cantilever bogie axle,trailer bogie suspension 1. HJ bogie ... bearing position is used the grinder machine to machine to keep the concentricity. After process, to limit concentric degree within 0.02MM ... high performance, non-asbestos, non-pollution and long using life. To make check and re-place easy, HJ brake lining install the ...