Engine Gears

Application Solution

Aerospace Gears Suppliers : Engine Gears & Aircraft Engine Shafts

Aerospace engine components operate under demanding conditions involving high rotational speeds, temperature, vibration, and repeated mechanical loads. The gears and shafts used in these systems therefore require careful control of material properties, geometry, surface condition, and manufacturing consistency.

Batom is an aerospace gears supplier providing precision gears and shafts for aerospace applications, including engine gears, engine drive shafts, and aircraft engine shafts.

Our manufacturing experience covers complex gear and shaft components where dimensional accuracy and process traceability are critical. We support customer-specific drawings, material specifications, heat-treatment requirements, inspection plans, and applicable aerospace process requirements.

Our Aerospace Engine Gear Manufacturing Solutions
Push-Back Ball and Drive Shaft

Batom manufactures precision drive-shaft components for aerospace mechanical systems, including push-back ball and drive shaft applications.

Shaft manufacturing can involve multiple precision features such as splines, bearing journals, shoulders, threaded sections, and functional interfaces. Maintaining the relationship between these features is essential for smooth power transmission and reliable assembly.

Depending on the application, manufacturing may include CNC turning, milling, spline machining, grinding, heat treatment, and precision inspection.

Do Aircraft Engines Have Gears?

Yes. Although the main engine airflow path is dominated by rotating compressor and turbine stages, gears are used in various aircraft-engine-related mechanical systems.

One important example is the accessory gearbox (AGB). It transfers mechanical power from the engine to accessories that support engine and aircraft operation.

Depending on the engine design, geared systems may be associated with:
✓  Fuel pumps
✓  Oil pumps
✓  Hydraulic pumps
✓  Generators
✓  Starters
✓  Engine control accessories
✓  Auxiliary mechanical systems

This is why engine gears, gear shafts, and drive shafts must be manufactured with careful attention to speed, load, lubrication, fatigue, and dimensional accuracy.

Engine Gear Manufacturing for Aerospace Applications

An engine gear is not simply a conventional industrial gear manufactured to a smaller tolerance.

Aerospace engine gears may encounter high rotational speeds and demanding thermal and mechanical conditions. Tooth geometry must remain stable enough to provide predictable meshing, while the material and heat-treatment process must provide the required strength and wear resistance.

Batom can support gear manufacturing processes including:
✓  Gear hobbing✓  Gear shaping✓  Precision gear grinding✓  Gear profile modification✓  Gear lead modification✓  Gear twist correction✓  Shaft machining✓  Spline machining✓  Heat treatment✓  Gear measurement✓  CMM inspection✓  NDT
Engine Drive Shaft & Aircraft Engine Shaft Manufacturing

An engine drive shaft transmits rotational power between mechanical components. In aerospace applications, shaft performance depends on more than the outside diameter and overall length.

Important characteristics may include:

✓  Concentricity
✓  Runout
✓  Spline accuracy
✓  Bearing-journal geometry
✓  Surface finish
✓  Hardness
✓  Material integrity
✓  Fatigue resistance

Batom can manufacture customized aircraft engine shafts and drive-shaft components according to customer drawings and applicable aerospace specifications.

For complex shaft designs, multiple machining and finishing operations can be combined to achieve the required dimensional relationships between functional surfaces.

Aerospace Engine Gear Quality Control

For aerospace components, inspection begins with the manufacturing requirements defined by the engineering drawing and applicable specifications.

Depending on the project, inspection may include:
✓  Gear profile and lead measurement✓  Pitch and runout inspection✓  CMM dimensional inspection✓  Surface roughness measurement✓  Hardness testing✓  Material documentation✓  Non-destructive testing✓  Final dimensional verification

NDT methods such as MPI or FPI can be incorporated when specified for the material and component.

Batom also supports applicable aerospace special-process requirements, with process scope and accreditation confirmed according to the individual project.

Frequently Asked Questions

Q1: What certifications do you hold for manufacturing aerospace engine gears and shafts?

Batom supports aerospace manufacturing programs under applicable AS9100 and Nadcap requirements.

These requirements help control areas such as manufacturing processes, special processes, inspection, documentation, and traceability.

Certification and accreditation should be verified against the specific facility, process, and scope required for each aerospace program.

Q2: Do you offer custom manufacturing for aerospace engine gears and drive shafts?

Yes. We manufacture components according to customer drawings, technical specifications, material requirements, and inspection standards.

Our capabilities can cover:
✓  Engine gears
✓  Accessory gearbox gears
✓  Engine drive shafts
✓  Aircraft engine shafts
✓  Spline shafts
✓  Customized transmission components

Both prototype and production projects can be evaluated according to the required manufacturing route and volume.

Q3: What precision capabilities do you offer for engine gear machining?

Our gear manufacturing capabilities extend to DIN 4 / JIS 0 / AGMA 14, depending on the gear design and production process.

Available processes include precision gear grinding, gear shaping, hobbing, profile and lead modification, shaft machining, spline machining, and specialized inspection.

For aerospace applications, the required tolerance is established from the customer's drawing and functional requirements rather than applying a single accuracy grade to every component.

Q4: What materials can you process for aircraft engine shafts and gears?
Depending on customer specifications and applicable aerospace requirements, materials may include:
✓  High-strength alloy steels
✓  Stainless steels
✓  Titanium alloys
✓  Nickel-based alloys
✓  Other aerospace-qualified materials

For high-temperature or high-stress applications, material selection and heat treatment are evaluated together with the required mechanical properties and operating environment.

Q5: Can you support both prototypes and production quantities?

Yes. Aerospace development programs often progress from prototype and engineering validation into First Article Inspection and subsequent production.

Batom can support:
✓  Prototype manufacturing
✓  NPI development
✓  Engineering samples
✓  FAI / AS9102 documentation when required
✓  Low-volume production
✓  Production batches

The manufacturing process can be developed around the customer's drawing, inspection requirements, material specifications, and production quantity.

Aerospace Engine Gear & Shaft Supplier

Batom supplies precision aerospace gears, engine gears, engine drive shafts, and aircraft engine shafts for demanding aerospace applications.

Our focus is on controlling the complete manufacturing chain—from gear and shaft machining to grinding, heat treatment, inspection, and applicable special processes—so that each component is produced according to its intended aerospace application and technical requirements.