Patent ID: 6203114
Filing Date: 2001-03-20
Classification: F16C,G01K

Abstract:
An apparatus comprising: an axle; a wheel hub rotatably mounted on said axle by a plurality of wheel bearings; a chamber provided between said wheel hub and said axle adapted to receive a semi-fluid synthetic grease for lubricating said wheel bearings; and visual indicating means associated with said chamber for providing a visual indication to a user of the temperature of said wheel bearings, said visual indicating means comprising a member, a biasing component which biases said member relative to said chamber when a predetermined temperature is reached by said wheel bearings, a housing in which said member is provided, said housing being disposed in a metal plug, said housing including material therein which becomes viscous upon the application of a predetermined amount of heat to permit said member to be biased relative to said housing when said predetermined temperature is reached by said wheel bearings.