Apparatus for packing grease in bearings

A grease or lubricant bearing packer comprising, in combination:

• a container with a cylindrical bore having a bottom, said bore for receipt of bearing lubricant;
• a unitary, molded stem member including a lower cylindrical piston congruent with the cylindrical bore, said piston having a piston face opposed to the container bottom and a center axis perpendicular to the piston and container bottom, a plurality of fluid openings through the piston, said openings radially spaced from the axis, an axially, upwardly extending post from the piston with a throughbore through the piston and post, and a concave, frustoconical plate surrounding the openings and post for support of a bearing, said concave, frustoconical plate including a stem member peripheral rim generally congruent with the diameter of the piston;
• a unitary, molded cap member including a center tube threadably engagable with the stem member post and a convex, frustoconical cap plate surrounding the center tube in opposed relation to the stem member frustoconical plate for retaining a bearing member between the frustoconical plates, said cap member plate having a cap member peripheral rim of lesser diameter than the diameter of the stem member peripheral rim, said tube closed at the top end thereof and including a unitary, integral, molded handle formed thereon for gripping in order to thread the cap member onto the stem member and depress the cap member in the container;
• a dust cover member comprising a tubular section with an open lower peripheral edge and a cap section, said tubular section including a bottom peripheral rim congruent with the stem member peripheral rim;
• and
• a biasing spring intermediate the stem member and container bottom.