

Military & Defence Sector
At Llewellins Gears, we specialise in the design and manufacture of precision gears and splines tailored specifically for the military and defence sectors. 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 dedication to producing components that are not only highly reliable but also built to perform in the most demanding defence environments.

Capabilities in Military/Defence Gear and Spline Manufacturing
Military and Defence Gears and Splines
We produce high-performance gears and splines for various defence applications, including military vehicles, weapons platforms, aircraft, and communication systems. Each component is meticulously engineered to meet the rigorous demands of the military, ensuring exceptional reliability and optimal performance even under the most challenging conditions.
Commitment to ISO 9001 Quality Control
As an ISO 9001-certified manufacturer, we maintain stringent quality management practices across all stages of production. This ensures that our gears and splines meet military-grade specifications, offering superior performance and durability in critical defence applications.
Key Military/Defence Gear and Spline Types
- Spur Gears – Perfect for applications requiring steady, efficient power transmission between parallel shafts.
- Helical Gears – Designed for smooth, quiet operation in high-speed, heavy-load applications found in military equipment.
- Bevel Gears – Engineered to transmit power between shafts set at various angles, ideal for complex defence systems.
- Worm Gears – Compact and efficient, ideal for tight spaces requiring high torque and minimal maintenance.
- Planetary Gears – Lightweight and efficient, used in power transmission systems for military vehicles, drones, and weapons systems.
- Splines – Essential for transferring torque between connected components, ensuring secure and reliable connections for military equipment such as artillery, armoured vehicles, and aircraft.
Materials Tailored for Military Durability
Our gears and splines are crafted from high-performance materials like stainless steel, titanium, and hardened alloys. These materials are chosen for their ability to withstand the extreme conditions typical in military and defence environments, including high-impact forces, intense vibrations, and fluctuating temperatures.
Precision Manufacturing for Critical Applications
We utilise precise manufacturing techniques in gear cutting, spline production, and finishing to meet the strictest tolerances. Every component is engineered to endure the stresses encountered in military 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.