Four row tapered roller bearings and bearing outer ring also used moving boxes with holes, the first load bearing outer ring A box (see Figure 2). Factory in the outer ring, as well as inside and outside the inner circle are printed every other character symbols, characters must be installed when the symbols are arranged in order of load bearing box. Can not be any swaps in order to prevent the bearing clearance to change.
Bearing all the parts are put into boxes, and within the inner circle separated, and the outer ring outside the ring every axial Kaojin.
Measurement end with the outer ring bearing cover the width of the gap between the board to determine the appropriate thickness of the gasket.