Skf Nova Ab

Aktieboalget Skf

Goran R Lindsten

John E Wyman

Rune Adolfsson

Hans Wendeberg

Christian Bildtsen

Jesper Brandt

Elis Carlstrom

Annika Kristoffersson

Solid, homogenous or porous, shaped bodies are formed from different powders such as metals and ceramics by preparation of an aqueous slurry of the powder, which slurry comprises a protein substance which is soluble in water at ambient temperatures and capable of forming an irreversible gel on heating to a temperature not exceeding 90.degree. C. The protein substance, for example albumin, is used in an amount sufficient for the formation of a gel. The slurry is formed into a body of the desired shape by methods such as molding, tapecasting or dropforming and heating to a temperature at least corresponding to the gelling temperature of the protein.

Method for the production of solid shaped bodies

A rolling bearing includes an outer race ring, an inner race ring and a plurality of rolling bodies arranged between the race rings and adapted to roll against race tracks provided in the race ring surfaces facing each other. The bearing further includes at least one member spaced apart from the race tracks and contacting both race rings. The rolling bodies are electrically non-conductive while the at least one member contacting both race rings is highly electrically conductive, thereby allowing the transfer of electrical currents out of the bearing in an unharmful manner and/or the transfer of electrical signals through the bearing for processing outside the bearing.

Rolling bearing

The invention refers to an electrically conducting, preferably magnetic fluid, which contains magnetic particles, dispersed in a carrier fluid by means of a dispersant. The fluid is characterized therein that it also contains an electrolyte, which is held in solution by means of one or more complex-forming substances known as ligands.

Electrically conductive fluids

A bearing bushing incorporating a sleeve (1) of magnetizable material forming the sliding surface of the bearing, a shaft (2) mounted in said sleeve (1) and a lubricant in the form of a magnetic fluid (3) between the sliding surface of the sleeve (1) and the shaft (2), whereby the sleeve (1) is magnetized in an axial direction. For causing a hydrodynamic lubrication and an increased cooling effect the sleeve (1) has a number of radial holes (4) through which the magnetic fluid (3) may pass to the other side of the sleeve (1), and which, by the axial magnetic field about the sleeve (1), is given a circulating motion along the inner and outer side of the sleeve.

Magnetic bearing bushing I

Superparamagnetic liquids comprising: (A) magnetic particles in stable colloidal suspension; (B) an A-X-B dispersant wherein A is derived from a non-ionic surface active agent, B is a carboxylic acid group and X is a connecting group between A and B; and (C) a carrier liquid which is a thermodynamically good solvent for A but which does not form a stable superparamagnetic liquid with magnetic particles coated only with oleic acid.

Growing community of inventors

Molndal, Sweden

Goran R Lindsten