Running Gear

Axle boxes and bearings house and support the axles of rolling stock, allowing for smooth rotation while carrying heavy loads. They are critical to safe and efficient rail operations, reducing friction and wear while withstanding high dynamic forces. This section covers suppliers of axle boxes, roller bearings and related components for freight and passenger rolling stock.

Gears and gearboxes transfer torque from the traction motor to the wheelset, playing a vital role in train propulsion and performance. This section includes suppliers of gear units, gearboxes, shafts and couplings for both passenger and freight rolling stock, including high-speed and heavy-haul applications.

Powered bogies are the motorised wheel assemblies located beneath a train that provide traction and support. They house critical components such as traction motors, gearboxes, braking systems and suspension elements. This section features suppliers of powered bogies for multiple unit trains, locomotives and light rail vehicles across a range of applications.

Suspension systems on rail vehicles include components such as springs, dampers and other elements that absorb shocks and vibrations. These systems improve ride quality, reduce wear on track and rolling stock and enhance vehicle stability. This section covers manufacturers and suppliers of suspension components for locomotives, multiple units, trams and other rail vehicles.

Train articulation systems connect individual rail vehicles using shared bogies or hinged joints, allowing them to bend and flex around curves. These systems improve ride stability, reduce weight and enable better use of space within the train. Articulated trains are commonly used in high-speed, light rail and metro applications due to their efficiency and performance benefits.

Train brake systems are essential for safe and effective speed control and stopping of rail vehicles. They include a range of technologies such as pneumatic, hydraulic and electromagnetic braking systems used across passenger and freight rolling stock. This section provides information on the components, systems and suppliers involved in rail braking technology.

Train wheels, wheelsets and axles form the foundation of any rail vehicle’s running gear, supporting its weight and enabling safe, efficient movement along the track. This category covers the design, manufacturing and maintenance of these critical components, including forged wheels, monobloc wheels, solid and hollow axles, and assembled wheelsets for freight, passenger and high-speed trains.

Unpowered bogies are the wheel-carrying assemblies found beneath rail vehicles that do not provide propulsion. They support the weight of the vehicle, guide it along the track and help absorb vibrations and shocks. This section covers bogie frames, suspension components and related systems used in passenger coaches, freight wagons and other non-powered rolling stock.

Wagon bogies are the load-bearing frameworks that carry the wheels of freight wagons. They provide stability, support heavy loads and allow for smooth movement along the track. This section covers bogie designs, components and technologies used in freight applications, including those optimised for different cargo types and operational conditions.