Patent ID: 8094006

Claim:
A portable bearing test device, comprising: a housing; a power supply disposed within the housing, the power supply adapted to selectively receive alternating current (AC) electrical power and operable to supply direct current (DC) electrical power via a plurality of power supply outputs and a circuit common; a plurality of independent bearing test circuits, each bearing test circuit coupled to receive output electrical power from one of the power supply outputs, each bearing test circuit further adapted to independently couple to a separate rotating machine test bearing; a plurality of indicator lights mounted on the housing, each indicator light electrically coupled in series in one of the independent bearing test circuits; and a test switch mounted on the housing and having an input and an output, the test switch input electrically coupled to each of the independent bearing test circuits, the test switch output electrically coupled to the circuit common, the test switch movable between an open position, in which the test switch does not electrically couple each of the independent bearing test circuits to circuit common, and a closed position, in which the test switch electrically couples each of the independent bearing test circuits to circuit common.