CPC F16C 33/121 (2013.01) [F04C 2/18 (2013.01); F04C 2240/54 (2013.01); F04C 2240/56 (2013.01); F16C 2360/00 (2013.01)] | 20 Claims |
8. A journal bearing for a gear driven pump, comprising:
a bearing body having a bearing body circular opening that defines a bearing surface along a length of the bearing body, wherein:
the bearing surface is configured to carry a gear shaft load through a hydrodynamic fluid film pressure between a load surface of a gear shaft and the bearing surface,
the bearing body circular opening and bearing surface are sized to receive the gear shaft and to form a hydrodynamic fluid film between load surface and bearing surface when the gear driven pump is in operation, and
the bearing surface is formed from a leaded bronze material; and
a face plate adjacent to the bearing surface and configured to interface with a gear on the gear shaft, wherein:
the face plate includes a face plate circular opening sized to permit the gear shaft to be received by the bearing body circular opening and bearing surface and
the face plate is formed from a copper-nickel alloy;
wherein portions of the bearing body other than the bearing surface are made from a structural bearing material, wherein the structural bearing material is an aluminum or titanium alloy.
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