Low-wear grease for journal bearings

Details Low-wear grease for journal bearings Low-wear grease for journal bearings

1974-12-04

1976-01-27

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 25, C10M 318, C10M 514, C10M 720, C10M 724

Patent

active

039351149

ABSTRACT:
A low-wear grease for journal bearings characterized by a high temperature, multi-purpose heavy duty hydrocarbonaceous lubricant that is thickened by calcium acetate complex to form a lubricating grease having an ASTM worked penetration no less than 265; and molybdenum disulfide and a selected class of metallic oxide in effective and synergistic amounts. Surprisingly, better lubrication is provided when the molybdenum disulfide particles are non-uniform in size so they have a range of sizes, including some fine and some relatively coarse but are small enough to pass 100 percent through a 100 mesh screen, and 85 percent through a 325 mesh screen. The metallic oxide is either antimony trioxide or a mixture of substantially equal parts of antimony trioxide, zinc oxide, lead oxide, nickel oxide, tungsten trioxide, vanadium pentoxide and copper oxide. The particles of the metallic oxide are small enough to pass 90 percent through a 325 mesh screen. All particles are uniformly dispersed in the thickened, heavy duty lubricating grease.

REFERENCES:
patent: 3194760 (1965-07-01), Davis
patent: 3223626 (1965-12-01), Murphy et al.
patent: 3396108 (1968-08-01), Caruso
patent: 3472770 (1969-10-01), Preston et al.

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