Sealed bearing rotary rock bit assembly

Details Sealed bearing rotary rock bit assembly Sealed bearing rotary rock bit assembly

1981-10-29

1984-04-10

Kazenske, E. Robert

Metal working

Method of mechanical manufacture

Assembling or joining

29460, 73 73, B23P 1904

Patent

active

044412444

ABSTRACT:
A water detecting system for detecting water in the bearings and lubricant reservoir system of a sealed bearing rotary rock bit permits detection and removal of water to decrease premature bearing failure caused by the presence of water on the bearing surface.

REFERENCES:
patent: 3552187 (1971-01-01), Groninger
patent: 4014595 (1977-03-01), Dolezal
patent: 4172477 (1979-10-01), Reich
patent: 4199856 (1980-04-01), Farrow
W.-K. R. Chia, "Preheat Temperature for Vacuum Dewatering of Sealed Bit Bearing Prior to Greasing"; ASME Paper 78-Pet-38, 11/5/78, pp. 1, 2, 8, and 9.
Hughes Tool Company advertisement World Oil, Aug. 1, 1976, p. 49, "New Vacuum/Pressure Greasing Method Adds to Performance of Sealed Bearing Bits" Product Catalog 1979; Precision Humidity Measurement and Calibration Equipment--Thunder Scientific Corporation, Albuquerque, New Mexico 87123.

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