Planetary Gearbox Repair and Rebuild Services

Yes. Many planetary gearboxes can be repaired when the housing and core assembly remain serviceable. A repair typically starts with disassembly and inspection of planetary gears, sun gears, ring gears, bearings, shafts, seals, and lubrication-related components. Depending on the findings, worn parts may be reconditioned, precision-machined, replaced, or reverse-engineered before the gearbox is reassembled and performance-tested.

Planetary gearbox cost varies significantly based on torque capacity, ratio, manufacturer, configuration, materials, and required lead time. Repair cost is also driven by the failure extent and availability of gears, bearings, shafts, and other components. An inspection and documented repair scope provide the most useful comparison between rebuilding the existing unit, exchanging it, or purchasing a replacement gearbox.

Common causes include bearing wear, gear tooth damage, lubrication breakdown, contamination, overload, misalignment, seal failure, and heat-related distress. Continued operation after abnormal noise, vibration, temperature changes, or oil contamination can increase damage to multiple internal components. A failure analysis helps identify the root cause, so the rebuild can address both damaged parts and the condition that contributed to failure.

A rebuild can include complete disassembly, cleaning, inspection, failure analysis, and evaluation of gears, bearings, shafts, seals, housings, and lubrication-related components. Serviceable parts may be reconditioned, while damaged or obsolete components can be replaced, machined, gear-cut, or reverse-engineered. The unit is then reassembled, lubricated, and tested to verify proper operation before return to service.

Yes. When OEM parts, drawings, or support are unavailable, obsolete components may be evaluated for reverse engineering and manufacture. Houston Pump & Gear can support restoration through precision machining, shaft manufacturing, gear cutting, and component refurbishment. The feasibility depends on the condition of the original part, available dimensional references, material requirements, and the operating demands of the gearbox.

Repair time depends on the failure severity, scope of machining, availability of replacement components, and testing requirements. Straightforward repairs can move more quickly than extensive rebuilds involving custom gears or reverse-engineered parts. For critical downtime events, Houston Pump & Gear offers 24/7 emergency support and has demonstrated a 72-hour emergency gearbox repair turnaround for a power plant application.

Arrange an inspection when operators notice increased noise, vibration, heat, oil leakage, contaminated lubricant, reduced torque performance, or recurring trips. Inspection is also valuable during planned outages, before a suspected problem develops into a shutdown. Reviewing gears, bearings, shafts, seals, and lubrication condition can identify developing wear and help facilities plan corrective work around production requirements.

Yes. Houston Pump & Gear provides 24/7 emergency industrial repair support for unexpected gearbox failures and critical downtime situations. Emergency response can include rapid assessment, repair planning, expedited work, and same-day pickup response when appropriate. The goal is to establish a practical recovery path quickly while maintaining the inspection, repair, and verification needed for dependable return to service.