Magnetic ball bearing assembly using ferrolubricants

Details Magnetic ball bearing assembly using ferrolubricants Magnetic ball bearing assembly using ferrolubricants

1974-09-06

1976-08-31

Spar, Robert J.

Cutlery

184 1R, 184 1E, 277 80, 308 10, 308188, 308202, F16C 1906, F16C 3332, F16C 3334, F16C 3358

Patent

active

039777391

ABSTRACT:
A roller assembly utilizes a ferrofluid as a lubricant (ferrolubricant). Integral structural portions of the assembly are made to have magnetic portions which create their own magnetic field gradient causing magnetic field maxima at points immediately surrounding the contact point between a particular roller element and its raceway. This in turn entrains the ferrolubricant around the contact point thus ensuring continued lubrication of contacting surfaces. Further, the entraining action prevents leakage of the ferrolubricant from the assembly.

REFERENCES:
patent: 1758446 (1930-05-01), Koethen
patent: 2591129 (1952-04-01), Brouwer
patent: 3011842 (1961-12-01), Morris
patent: 3031802 (1962-05-01), Leliaert
patent: 3104917 (1963-09-01), Schwartzwalder
patent: 3746407 (1973-07-01), Stiles et al.

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