Aircraft Gearbox Market Report 2026

The aircraft gearbox market size has grown strongly in recent years. It will grow from $3.91 billion in 2025 to $4.25 billion in 2026 at a compound annual growth rate (CAGR) of 8.6%. The growth in the historic period can be attributed to growth in commercial and military aircraft production increasing gearbox demand, advancements in gear train design improving torque and rpm control, rising adoption of lightweight materials in gearbox manufacturing, expansion of maintenance repair and overhaul (MRO) activities requiring gearbox replacement and refurbishment, increased integration of planetary and helical gearbox systems in modern propulsion architectures.

The aircraft gearbox market size is expected to see strong growth in the next few years. It will grow to $5.87 billion in 2030 at a compound annual growth rate (CAGR) of 8.4%. The growth in the forecast period can be attributed to rising production of next-generation aircraft requiring higher-efficiency gearboxes, advancements in noise-reduction and vibration-control technologies for aviation gear systems, increased electrification of aircraft driving demand for specialized gearboxes, development of high-performance gear materials to withstand higher operating loads, growing focus on fuel efficiency boosting demand for optimized transmission systems. Major trends in the forecast period include adoption of high-precision gear manufacturing techniques, integration of lightweight and high-strength materials in gearboxes, rising demand for modular and customizable gearbox designs, increasing focus on predictive maintenance and condition monitoring, growth in retrofit solutions for aging aircraft fleets.

An increase in air traffic is expected to drive the growth of the aircraft gearbox market. An increase in air traffic refers to a rise in the number of people traveling by air, an expansion in international tourism, and greater demand for commercial aircraft deliveries. The growth in aviation activity driven by population and economic expansion has increased the need for aircraft engines and components, which in turn boosts demand for aircraft gearboxes. For example, in January 2025, the International Air Transport Association (IATA), a Canada-based trade group for airlines, reported that total full-year traffic in 2024 (measured in revenue passenger kilometers or RPKs) increased by 10.4% compared to 2023. International full-year traffic in 2024 rose 13.6% compared to 2023, with capacity increasing by 12.8%. Therefore, the rise in air traffic is contributing to the growth of the aircraft gearbox market.

Major companies in the aircraft gearbox market are focusing on technological advancements, such as upgraded main gearboxes (eMGB), to improve safety, reduce maintenance expenses, and enhance overall operational efficiency. The upgraded main gearbox (eMGB) is an advanced component designed for helicopters, incorporating modern engineering and materials to enhance reliability and performance. This innovative gearbox reduces maintenance needs and downtime, strengthening aircraft efficiency and safety for operators. For instance, in February 2023, Airbus Helicopters SAS, a France-based helicopter manufacturing division of Airbus, introduced an upgraded main gearbox (eMGB) for the H225. This upgrade aims to enhance safety and significantly lower maintenance requirements, demonstrating Airbus’s commitment to advancing technology in the heavy-twin helicopter segment.

In March 2023, Regal Rexnord Corporation, a US-based manufacturer of electric motors and power transmission components, acquired Altra Industrial Motion Corp. for an undisclosed amount. This acquisition allows Regal Rexnord to expand its automation portfolio and establish a more comprehensive global automation solutions offering, supported by complementary power transmission technologies. The strategic move aims to accelerate organic growth through a broader product range and stronger sales channels, while generating significant cost synergies to enhance overall profitability. Altra Industrial Motion Corp. is a US-based producer of mechanical power transmission products.

Major companies operating in the aircraft gearbox market are Safran, Triumph Group, Liebherr, The Boeing Group, General Electric, Rexnord Corporation, Rolls-Royce plc, Aero Gear, SKF, Northstar Aerospace, BAE Systems India Services Pvt Ltd, Nabtesco Corporation, Harbin Aircraft Industry Group, Shenyang Aircraft Corporation, Xi'an Aircraft Industrial Corporation, Shanghai Aircraft Industry Corporation, Hongdu Aviation Industry Group, Changhe Aircraft Industries Corporation, Chengdu Aircraft Industry Group, Guizhou Aircraft Industry Corporation, Meggitt PLC, Eaton Corporation PLC, Airbus S.A. S, ZF Luftfahrttechnik, ThyssenKrupp AG, CEF Industries, The Timken Company, PBS Velka Bites, Avion Corporation, AAR Corp, Circor International Inc, Collins Aerospace, Héroux-Devtek Inc, Magellan Aerospace Corporation, Bombardier Inc, Bell Textron Inc, Pratt & Whitney Canada, KF Aerospace, Elbit Systems Ltd, Israel Aerospace Industries, Saudi Aircraft Accessories and Components Company, Mubadala Aerospace, Alp Aviation, Turkish Technic Inc, Turkish Aircraft Industries Corporation, Parker-Hannifin Corporation, Moog Inc.

North America was the largest region in the aircraft gearbox market in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the aircraft gearbox market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

Tariffs on aerospace components, high-precision gears, and metal raw materials have increased production costs and supply chain complexity for aircraft gearboxes. Segments such as reduction gears, planetary gearboxes, and tail rotor gearboxes are most affected, particularly in regions like North America, Europe, and Asia-Pacific where cross-border manufacturing is prominent. Despite cost pressures, tariffs have incentivized domestic manufacturing, encouraged investment in local high-precision machining facilities, and accelerated the adoption of more efficient and technologically advanced gearbox solutions.

The aircraft gearbox market research report is one of a series of new reports that provides aircraft gearbox market statistics, including aircraft gearbox industry global market size, regional shares, competitors with aircraft gearbox market share, detailed aircraft gearbox market segments, market trends, and opportunities, and any further data you may need to thrive in the aircraft gearbox industry. This aircraft gearbox market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenarios of the industry.

The aircraft gearbox is a crucial component within an aircraft's transmission system, responsible for adjusting rotational speeds and enabling engine functionality. Shafts interconnect gearboxes, and the internal arrangement of gears within the gearbox determines output torque and speed variations. Its primary function is to modify motor output torque or adjust speed (RPM).

This gearbox constitutes a contained gear train, comprising integrated gears housed within a mechanical enclosure. Key components include gears, housing, bearings, and related elements. Gears are rotating devices featuring teeth (cogs) that facilitate their functionality. Aircraft gearboxes cater to various aircraft types, including civil and military aviation, and come in retrofit or line fit configurations. They encompass diverse gearbox types such as accessory, actuation, reduction, tail rotor, and auxiliary power unit, among others. These gearboxes find applications in both engines and airframes.

The countries covered in the aircraft gearbox market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The aircraft gearbox market consists of sales of shafts, covers, helical gearboxes, planetary gear boxes, worm gear boxes, and crane duty gear boxes. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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