Large Gearbox Housing Machining

Expert CNC Machining for Heavy Drivetrains

Gearbox housings form the critical foundation of heavy industrial drivetrains. In massive scale operations like wind turbines, marine propulsion systems, and mining crushers, a minor deviation in bearing bore alignment can lead to catastrophic gear failure.

At Openex, we merge colossal dimensional capacity with microscopic accuracy. Utilizing state-of-the-art floor-type Horizontal Boring Mills (HBM) and large 5-axis CNC machining centers in climate-controlled zones, we ensure perfect concentricity, perpendicularity, and ultra-tight tolerances across housings weighing tens of thousands of pounds.

Technical Mastery & Process Integrity

Critical Bore Alignment & Concentricity

For split and solid gearbox shells, maintaining strict center-to-center bore distances is crucial for optimal gear meshing. Our heavy horizontal boring mills feature massive W-axis and Z-axis reach, allowing us to plunge-mill deep bearing journals with identical tolerances simultaneously, eliminating resetting errors.

From Massive Castings to Weldments

Whether your design calls for nodular cast iron or custom fabricated heavy steel assemblies, Openex provides an integrated solution. For custom heavy steel housings, our on-site Stress Relief Heat Treatment furnaces remove welding-induced tensions before final machining to ensure perfect dimensional stability over the product's lifespan.

Large Scale 3D Metrology & Inspection

Verification on huge parts requires huge instruments. Using extra-large Bridge Coordinate Measuring Machines (CMM), FARO Laser Trackers, and Zeiss probing units, we mathematically guarantee print alignments and map true positional accuracies down to micrometers.

Technical Gearbox Machining Specs

Equipped with 250-ton cranes and enormous machine beds, Openex regularly fulfills precision mechanical demands for Tier 1 OEMs across global industries.