Locomotive and Railway Vehicle Drive Gearbox High Load Capacity
Extreme Reliability & Safety
Product Overview
This gearbox series is a core transmission component specifically
designed for railway vehicles, including electric locomotives,
diesel-electric locomotives, high-speed EMUs (Electric Multiple
Units), metro trains, and light rail vehicles. Its function is to
convert the high-speed, low-torque power generated by the traction
motor into the low-speed, high-torque power required to drive the
wheelsets. Renowned for its extreme reliability, exceptional
efficiency, and high load capacity, this gearbox ensures the safe,
smooth, and efficient operation of trains under demanding
conditions, making it a critical foundational component in the rail
transportation industry.
Key Advantages
Extreme Reliability & Safety: Manufactured to the most stringent design standards and material
specifications, undergoing rigorous bench tests and line trials.
Ensures failure-free operation under long-term impact and
vibrational loads, guaranteeing absolute operational safety.
Exceptional Transmission Efficiency: Utilizes high-precision, hardened and ground gears through
carburizing and quenching processes. Optimized tooth profiles
minimize friction loss, achieving a transmission efficiency of over
98%, effectively saving energy.
High Load Capacity: Gears and housing are made from high-strength alloy steel with
optimized structural design, providing exceptional impact and
fatigue resistance to transmit massive traction and braking torque.
Excellent Lightweight Design: Employs high-strength lightweight alloys and Finite Element
Analysis (FEA) for topology optimization. Significantly reduces
weight while ensuring strength, lowering unsprung mass and
improving vehicle dynamics.
Superior Sealing & Maintainability: Combines multi-stage labyrinth seals with special lip seals to
effectively prevent gear oil leakage and ingress of external
contaminants. Features long maintenance intervals and simple
procedures.
Technical Specifications
Product Type:Single-stage reduction, Two-stage reduction
Adapted Power:200 kW ~ 1500 kW (Vehicle dependent)
Gear Ratio:3:1 ~ 6:1 (Common range)
Max Output Torque:Up to 200 kNm (Vehicle dependent)
Gear Design:Helical/Herringbone, Carburized, Hardened and Ground Gears
Lubrication:Splash lubrication or Forced circulation lubrication
Cooling Method:Natural air cooling or Forced air cooling (with auxiliary fan)
Design Standard:Complies with EN, IEC, UIC, GB and other relevant international and
national standards.
Typical Applications
High-Speed EMUs: Driving high-speed trains operating at 200 km/h and above.
Electric Locomotives: Driving mainline freight and passenger electric locomotives.
Diesel-Electric Locomotives: Driving mainline and shunting locomotives.
Urban Rail Vehicles: Driving metro, light rail, tramway, and intercity trains.
Other Applications: Suitable for special-purpose vehicles like engineering
maintenance vehicles and mining locomotives.
