We have been increasingly repairing gearboxes on trams and low-floor vehicles for the past few years. We offer everything: from a general inspection of the axle drives as a general contractor and repairing individual gearboxes or gearbox series to spare parts management for your drive unit. We also perform type-independent redesign or reconstruction of gearboxes on our premises. Strong partners and experienced consultants supplement our specialist knowledge.

We are the general contractor for inspecting axle gearboxes as part of a general inspection of drives. The gearboxes and motors are inspected by AS and repaired. Pressing off and pressing on, as well as inspecting and repairing the gear set components are performed in co-operation with strong, certified partners (e.g. GHH Gutehoffnungshütte Radsatz).

Overview of benefits:

• Only one main point of contact responsible
• Significant reduction in logistical effort
• Damage caused by interactions between the individual components can be identified easier
• Countermeasures (modifications) are drawn up and implemented
• Consultation regarding preventive repairs (ensuring availability) and inspections on-site

When we speak of a redesign, we mean type-independent redesign or rebuilding of a train gearbox.

Reasons for a redesign:

• The original gearbox manufacturer is no longer on the market
• The gearbox type is no longer built
• Increased circulating reserve due to one-off and small-batch production
• Modification of problematic drives

Procedure:

• Exact measurement on the bogie/vehicle
• Construction of the new gearbox
• Performance-related calculation and redesign
• Improvements through modification
• Production of the parts to strict quality standards
• Assembly according to state of the art
• Test bench run / test run
• Painting and final inspection
• Compilation of documentation

We repair gearboxes and motors from all manufacturers!

Our repair work is distinguished by:

• Extensive damage analysis in consultation with the operating company – also on site
• Recalculation and redesign of the gearbox (parts) by our own design department
• Modification of the gearboxes on the basis of the knowledge gained
• Our own highly trained personnel with years of experience
• State of the art and professional assembly
• Excellent workshop equipment, as well as special assembly devices and tool systems
• Flexibility (24/7/365)
• Certified quality in accordance with DIN EN ISO 9001

We are your trusted partner for all railway gearbox spare parts.

Our comprehensive service portfolio includes reverse engineering, the manufacture and procurement of spare parts, spare parts inventory management, and practical, in-depth training tailored to our customers’ needs.

We supply all types of spare parts for train gearboxes, including:

• Bevel gear sets
• Spur gear sets
• Hollow output shafts
• Bearings
• Neck journal bearing bushes
• Couplings
• Labyrinth flanges
• Housing
• And much more.

Our design department designs the new spare parts, builds them and produces corresponding drawings and documentation based on component parts and with the aid of the performance data or the vehicle data. We maintain very good contact with suppliers in order to procure bearings, special parts and standard parts. As part of spare parts procurement, AS offers consignment storage in conjunction with value contracts.

Thanks to our experience in the train drives sector, we enjoy dealing with unusual problems. As a medium-sized company, we have the flexibility and dedication to master even difficult challenges. Our expert team works across sectors and therefore benefits from its knowledge from other areas of operations. We look at the complete drive train. From the motor to wheel/rail contact. We evaluate the interaction between all drive components such as motors and gearboxes. We can draw up sustainable solutions together with the train operating company. Our own design department calculates the new options and designs them.

• Standard solutions are not always sufficient to meet complex technical requirements. Whenever unique operating conditions, challenging installation constraints or demanding performance requirements arise, we develop tailor-made drive systems designed specifically for your application.

  From the initial concept through to the finished product, we manage the entire development process. Our engineering team designs innovative drive solutions that combine technical excellence with economic efficiency. Using state-of-the-art design tools, simulation methods and engineering calculations, we precisely size and optimize every component – including housings, gears, shafts, bearings and sealing systems.

  Following the engineering phase, all components are manufactured and assembled into a fully functional drive system. Prototype units are then built and validated under realistic operating conditions. Comprehensive test bench trials verify the performance, reliability and durability of the complete drive system, ensuring that every design meets the highest quality standards.

  Throughout the entire project, detailed technical documentation provides full traceability and forms the basis for manufacturing, commissioning and future maintenance.

  With decades of experience in research and development and extensive expertise in drive technology, we deliver customized drive solutions – from the initial concept and engineering through manufacturing, prototype construction, validation and complete technical documentation.