
Serving Tucson and Arizona industry — copper mining and concentrating, aerospace and aggregate. 8–12 day rebuilds, 24–72 hour emergency service.
Gear repair in Tucson, AZ is shaped by what the area actually runs: copper mining and concentrating, aerospace and aggregate. That mix decides what reaches our bench — SAG and ball mill drives, crusher and apron feeder gearboxes, conveyor and stacker reducers. Standard rebuilds ship in 8–12 business days, emergency work in 24–72 hours, at rates 18–25% below standard shop estimates, with cash buyback available on surplus and failed units.
Copper concentrator duty is the definition of abrasive service: ore dust finds every seal, and high ambient heat thins the oil film. Mill drives here need seal and breather strategy addressed at rebuild, not just gears and bearings.
Every unit gets the same process regardless of where it ships from: full teardown with documented failure analysis, gear tooth inspection to AGMA tolerance, new bearings and seals throughout, housing line-boring where bores have gone out of round, gear sets recut to the original tooth data when wear has passed the point of repair, and a dynamic load test before it ships back. Text a nameplate photo to (641) 519-6270 or use the instant quote app.