Motion-transmitting combination comprising a castable, self-lubricating composite and methods of manufacture thereof
OwnerFerdinand L. Vogelinventor
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Abstract
A motion-transmitting combination comprising a cast member of a self-lubricating polymer composite adapted for movable joinder with a metal member of at least one metal, metal alloy or metal mixture is provided. The metal member has a wear-resistant, porous surface layer impregnated with a self-lubricating compound, and is capable of contacting the cast member with low clearance. Methods for preparing a motion-transmitting combination comprising a cast member adapted for movable joinder with a metal member are also provided.
Claims19
A motion-transmitting assembly comprising a metal member and a polymer composite member, the polymer composite member being mounted in relatively movable clasping engagement with a surface portion of the metal member, wherein
- the metal member has a wear-resistant self-lubricating surface consisting of a porous metal oxide layer or a porous electrolyzed metal layer, with a porosity between about 1 percent and about 35 percent by volume, and a first self-lubricating compound impregnated into the pores of the metal oxide or electrolyzed metal layer,
- the polymer composite member is a self-lubricating polymer composite comprising a thermosetting, thermoplastic or thermoset/thermoplastic polymer and a second self-lubricating compound wherein the second self-lubricating compound is about 1-70 percent by weight of the total self-lubricating polymer composite, the polymer composite member being encased in a metal shell, and
- wherein there is low clearance between the metal member and the polymer composite member.
An assembly according to claim 13 wherein the load bearing member is a rail or track.
A motion-transmitting assembly comprising a metal member and a polymer composite member, the polymer composite member being mounted in relatively movable clasping engagement with a surface portion of the metal member, wherein
- The metal member has screw threads provided with a wear-resistant self-lubricating surface consisting of a porous metal oxide layer or a porous electrolyzed metal layer, with a porosity between about 1 percent and about 35 percent by volume, and a first self-lubricating compound impregnated into the pores of the metal oxide or electrolyzed metal layer,
- the polymer composite member is a self-lubricating polymer composite comprising a thermosetting, thermoplastic or thermoset/thermoplastic polymer and a second self-lubricating compound wherein the second self-lubricating compound is about 1-70 percent by weight of the total self-lubricating polymer composite, the polymer composite member being provided with screw threads that mate with the screw threads of the metal member and being encased in a metal shell, and
- wherein there is low clearance between the metal member and the polymer composite member.
Dependencies are inferred from the claim text.