Achievo Engineering Components successfully undertook the complete overhauling of a Right Angle Gearbox used in the Mumbai Metro rolling stock. The project included complete dismantling, inspection, replacement of worn components, precision reassembly, lubrication, and functional testing. The refurbished gearbox successfully completed joint inspection and operational testing in the presence of customer representatives at the Mumbai Metro testing facility.
The Challenge
Metro rail gearboxes operate under continuous duty, vibration and high loads. Over time, seals, bearings, gears and lubricants deteriorate, affecting performance and reliability. The objective was to restore the gearbox to reliable operating condition while meeting the required operating parameters.
Engineering Process
- Incoming inspection and condition assessment
- Complete dismantling of gearbox assembly
- Cleaning and detailed inspection of gears, shafts, bearings and housing
- Replacement of damaged gears, oil seals, O-rings, gaskets and other worn components
- Fresh gear oil and lubrication
- Precision reassembly and alignment
- Functional testing and performance validation
Testing & Validation
- Visual inspection
- Oil leakage check
- Gear alignment verification
- Bearing seating verification
- Lubrication and oil level verification
- Noise and vibration measurement
- Surface temperature monitoring
- Output RPM verification
- Smooth operational trial
Results
The overhauled gearbox demonstrated smooth operation with satisfactory performance during inspection and testing. Critical parameters including alignment, sealing, lubrication, vibration, noise and temperature were verified before acceptance. The project was jointly inspected and validated by the customer and Achievo Engineering Components.
Achievo Capabilities
- Industrial Gearbox Overhauling
- Reverse Engineering
- Mechanical Assembly
- Seal, Bearing & Gear Replacement
- Performance Testing
- Preventive & Corrective Refurbishment
Why Achievo?
• Engineering-driven refurbishment • Precision mechanical expertise • In-house component manufacturing capability • Performance validation before delivery • Experience supporting critical infrastructure projects.
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