

Rail Sector
At Llewellins Gears, we specialise in the design and manufacture of precision gears, splines, and other critical components tailored for the rail industry. As an ISO 9001:2015 certified manufacturer, we ensure that our entire production process—from manufacturing to testing—meets the highest international standards.
Our ISO certification reflects our commitment to providing components that are not only highly reliable but also engineered to perform in the demanding environments of rail operations.

Capabilities in Rail Gear and Spline Manufacturing
Rail Gears and Splines
We produce high-performance gears, splines, and other components for various applications within the rail industry, including locomotives, trains, and track switching systems. Each component is designed to meet the rigorous standards of the rail sector, ensuring optimal performance, durability, and reliability in the fast-moving and high-stress environment of rail transport.
Other Rail Components
In addition to gears and splines, we manufacture a wide range of essential components such as shafts, couplings, bearings, and seals, ensuring all parts contribute to the efficient operation of rail machinery. Whether it’s for traction systems, braking mechanisms, or track alignment, we offer reliable components tailored to meet the specific needs of the rail industry.
Rail Equipment Support
Our expertise extends to components used in various rail equipment such as locomotives, electric multiple units (EMUs), and track-switching devices. We offer precision gears and splines for these essential systems, ensuring they operate efficiently and reliably under the high pressures and constant movement associated with rail transport.
Commitment to ISO 9001 Quality Control
As an ISO 9001-certified manufacturer, we adhere to stringent quality management processes throughout production. This ensures that all our gears, splines, and components meet rail-specific standards, providing exceptional performance and reliability in the demanding conditions of the rail industry.
Key Rail Gear and Spline Types
- Spur Gears – Ideal for applications requiring efficient power transmission between parallel shafts in rail systems.
- Helical Gears – Designed for smooth, quiet operation in high-speed, heavy-load applications such as traction systems in locomotives and trains.
- Bevel Gears – Crucial for transmitting power between shafts set at various angles, making them essential for track switching and drive systems in rail vehicles.
- Worm Gears – Compact and efficient, perfect for tight spaces requiring high torque and minimal maintenance in rail equipment.
- Planetary Gears – Used in high-efficiency, lightweight power transmission systems for rail vehicles and track machinery.
- Splines – Vital for transferring torque between connected components, ensuring secure and reliable connections for critical rail systems, such as drive shafts, traction motors, and braking systems.
Materials Tailored for Rail Durability
Our gears and splines are crafted from advanced, high-performance materials such as stainless steel, titanium, and specialised alloys. These materials are selected to withstand the extreme conditions found in the rail industry, including high mechanical stress, temperature variations, and constant vibrations.
Precision Manufacturing for Critical Applications
We utilise precise manufacturing techniques in gear cutting, spline production, and finishing to meet the strictest tolerances. Every part is designed to endure the unique stresses of rail operations, ensuring reliable performance and durability in the field.

Provide a first class service from a long standing professional company run by experienced and proper people. Many thanks for the parts remade for my vintage Peugeot Bebe.