Repair pricing, failure modes, and turnaround for planetary gearboxes — or sell yours for cash.
Planetary gearboxes pack extreme torque into a compact envelope — sun gear, planet gears, and ring gear sharing the load. They drive slewing rings, winches, wind pitch/yaw drives, crawler final drives, and mixer applications.
We arrange complete teardown, failure analysis, and rebuild to OEM spec for planetary gearboxes of every major brand — including Brevini, Bonfiglioli/Trasmital, Auburn, Rexroth, Fairfield/Torque-Hub, Zollern. Typical rebuild cost runs 30–60% of a new unit, with 5–14 day standard turnaround and 24–72 hour emergency service, against new-unit lead times that often stretch 16–30 weeks. Every quote comes with the full picture: standard shop price, our in-house price, replacement cost, and a cash offer for the unit as-is.
And if the numbers say replace instead of repair, we don't walk away — we buy failed, surplus, and decommissioned planetary gearboxes for cash, any condition, nationwide pickup. Even a seized unit carries value in its castings, alloy gearing, and copper windings.
Ring gear wear and pitting from contamination
Planet bearing failure under shock load
Carrier cracking on over-torqued drives
Sun gear spline wear from misalignment
Brevini, Bonfiglioli/Trasmital, Auburn, Rexroth, Fairfield/Torque-Hub, Zollern. Browse all 60+ brands or check the rebuild price guide for cost ranges by size.
Or call/text (412) 557-4495.