Over 35 years of engineering excellence, GES delivers end to end gearbox services. From German verified calculations and precision CNC manufacturing to predictive monitoring and full refurbishment. Backed by ISO 9001:2015 and a 30+ year track record in heavy industries.





GES gear drives are engineered using advanced design and analysis software to ensure superior performance, reliability, and long service life. Gear calculations are performed using the renowned HEXAGON GmbH German gear calculation software, while SOLIDWORKS® 3D CAD is used to create, simulate, and analyze gearbox designs, enabling precise stress evaluation and optimized mechanical strength for maximum efficiency and durability.
Full mechanical assembly with interference checking, FEA stress analysis and exploded views for manufacturing documentation.
Industry-standard gear calculation for tooth root fatigue fracture and surface pitting with lifetime expectancy output curves.
Every gear set is validated for infinite life at design torque tF and tH lifetime outputs reviewed before production release.
GES manufactures standard and custom gear drives to meet diverse industrial requirements. When technical data is unavailable, our engineering team applies reverse engineering techniques to reproduce and upgrade gearbox components while maintaining original performance specifications.
Manufactured to ISO certified quality standards, GES gear drives utilize premium imported steels from Germany, the UK, and Korea to ensure exceptional durability, efficiency, and reliability. Combined with advanced manufacturing processes and stringent quality control, our gear drives deliver dependable performance in demanding industrial applications.




GES employs vibration scanning technology to predict accuracy and running conditions of gearboxes while in operation. We conduct monitoring on a regular basis and provide analysis reports recommending preventive maintenance actions to avoid machine downtime due to gearbox failure.
With over 28 years of experience, Gleason Engineering Service (GES) specializes in the repair, refurbishment, and servicing of industrial gear drives from leading manufacturers worldwide. Our expertise covers troubleshooting, consultation, inspection, overhauling, and replacement of damaged gear internals, helping customers restore performance, reduce downtime, and extend equipment life.
Root cause analysis and on-site diagnosis of gear failure modes.
Full teardown, inspection, cleaning and reassembly to OEM spec.
Measurement and re-manufacture of obsolete internals and gears.
Non-destructive examination of gear teeth, shafts and housings.
GES gear drives and services operate in some of the most demanding environments in Malaysian and regional industry.
Mill gears, pinion stands and gear couplings for steel rolling mills.
Girth gears, pinion assemblies and forged gears for kilns and mills.
Slewing bearings and gear sets for wind turbine systems.
Heavy-duty gearboxes and couplings for power generation equipment.
Precision gears for vehicle drivetrain and transmission systems.
Custom gear solutions for industrial engine and mechanical systems.
Gear sets for coal pulverisers, conveyors and hoisting equipment.
High-reliability gear components for military-grade applications.