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US 12,508,680 B2Granted
Gearbox case with wear sleeve
AssigneeMid-States Oilfield Machine LLC
InventorJohn Floyd Bossa
Life of this patent
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Abstract
A gearbox may include a gearbox case with a wear sleeve disposed within a shaft bore, and a gear assembly mounted on a shaft and disposed within the shaft bore. The gear assembly may include a bearing that engages the wear sleeve. A method of repairing a gearbox case may include uncoupling a top piece and a bottom piece of the gearbox case, forming an oversize bore in a shaft bore of the gearbox case to remove a damaged area, and installing a wear sleeve in the oversize bore.
Claims20
A gearbox case comprising:
- a body with a first side and a second side;
- a shaft bore of substantially uniform diameter extending through the body from the first side to the second side, the shaft bore comprising:
- a first bore portion formed by the inner diameter of a first wear sleeve disposed within the body;
- a second bore portion formed by the inner diameter of a second wear sleeve disposed within the body;
- and
- a third bore portion formed into the body.
3 more elements
Dependencies are inferred from the claim text.