Full-Service Manufacturing for Large Gearbox & Bearing Housings
Openex specializes in the fabrication and machining of large gearbox housings and bearing casings. We support both one-off prototypes and large-scale production, delivering precision components with complex geometries and tight tolerances.
Why Choose Openex?
- Massive Capacity: Machining workpieces up to 100 tons
- Full Vertical Integration: Fabrication, machining, assembly under one roof
- Advanced Metrology: ZEISS CMMs and Leica laser tracking
- Certified Quality: ISO 9001, CE EN 1090-1, AWS, ASME
- Global Clients: Trusted by major OEMs and EPCs worldwide
Precision Machining Capabilities
- 5-Axis CNC Machining
- Vertical Lathe Swing up to 22m diameter
- 50m × 8m × 7m machining envelope
- Custom fixturing for oversized and asymmetric parts
- Surface finish Ra ≤ 1.6 µm
Welding & Heat Treatment Services
- Carbon steel plate welding and heavy weldments
- Stress relief and thermal treatment
- Multi-piece casing fabrication & joining
- Split bearing housing welding + rough/finish machining
Industries We Serve
- Mining & Earthmoving Equipment
- Wind & Gas Turbines
- Marine & Shipbuilding
- Oil & Gas Machinery
- Steel & Aluminum Mills
- Power Generation & Energy
- Aerospace Ground Equipment
Component Types
- Bearing Housings (Split, Pedestal, Plummer Block)
- Helical & Bevel Gear Casings
- Custom Marine Propulsion Housings
- Drive End & Non-Drive End Housings
Materials
- Cast Steel: ASTM A216 WCB, A148, ZG270-500
- Forged Steel: AISI 4140, 42CrMo4, 20CrMnTi
- Welded Structures: Q345B, ASTM A572
- Ductile Iron: QT450-10, GGG40/60
- Special Alloys: Stainless, Nickel Alloys (on request)
Quality Assurance & Inspection
- ZEISS CMMs (MMZ G, ACCURA II)
- Leica Laser Tracker AT901
- Non-Destructive Testing: UT, MT, RT
- Full Material Traceability & ISO 9001 Reports
Request a Free Quote
Need custom gearbox or bearing housing components? Send us your drawings and get a tailored quote from our experts.
📧 Email: [email protected]
📞 Phone: +86 186 5928 0806
