Preparation steel backing self -lubricating bearing's powder metallurgy die

The utility model provides a preparation steel backing self -lubricating bearing's powder metallurgy die, it includes the backing plate, the center processing of backing plate has a step in first, has inserted the steel backing cover in first in the step, mould during the top of steel backing cover is provided with, the mould has hollow die cavity in going up, the die cavity is the same with the hole aperture of steel backing cover, the lower extreme processing of mould has step in the second in going up, in going up the mould in through the second step insert in steel backing cover upper end, go up and be provided with the stamping above the well mould, the center of backing plate is provided with the centre bore, and the centre bore below sets up the plug, and the plug cooperatees with the centre bore, and the plug is installed on central jar. The self -lubricating bearing's of this mould production steel backing and powder metallurgy self -lubricating stacking are closed firmly, and the quality is reliable