The designs shown in figures 1 to 6 inclusive show various methods of using standard locknuts, lock washers, and tongued washers, indicated in the tables on pages 285 through 286. A single locknut and lock washer can be used to clamp the cone against a sleeve, shown in figure 1, or directly against a shaft shoulder. A narrow spacer is applied between the front face of the cone and the lock washer so that the lock washer will clear the bearing cage by a minimum of 3 mm (0.12 in). The spacer outside diameter should be made a minimum of 6 mm (0.24 in) smaller than the cage inside diameter, but must still provide the recommended cone backing diameter as found in the Timken engineering journal. Figure 2 shows another clamped design using a single locknut and lock washer with a two-row bearing of either type TDO with cone spacer or type TNA. Since no cage clearance problem is present, the narrow spacer shown in figure 1 is unnecessary.