Delta Gear

What Delta Gear does

Delta Gear is the aerospace and defense division of Delta Research LLC, a family-owned precision gear manufacturer headquartered in Livonia, Michigan. The company produces complex, high-tolerance gears and assemblies including spiral bevels (hypoid and Zerol), curvic couplings, helical, spur, ring, starter, pump, and power take-off gears, serving flight-safety-critical turbine engines, helicopter drive systems, aircraft actuation systems, defense ground vehicles, and automotive transmissions. Production runs from single prototypes to volumes of up to 2 million pieces per year, with the company claiming over 20 million gears produced in the past decade and inspection capability up to 39 inches (1 meter) diameter.

The technical platform is anchored by multiple Klingelnberg G60 Spiral Bevel Gear Grinders integrated with KIMoS 5 closed-loop design and grinding software, complemented by Gleason SIGMA 3 metrology systems upgraded with SP80H Renishaw 3-D scanning probes and GAMA analysis software, plus EDM capacity up to 40 inches and a NADCAP-certified metallurgical laboratory. The facility operates under AS9100D:2016, IATF 16949:2016, ISO 9001:2015, Nadcap NDT, A2LA ISO 17025, and DDTC/ITAR registrations, supporting a customer base that includes Rolls-Royce, Boeing, Airbus, CFM International (GE/Safran), Lockheed Martin/Sikorsky, Bombardier, Pratt & Whitney, GE Aviation, Honeywell, Liebherr, and the U.S. Department of Defense, alongside Chrysler/Stellantis on the automotive side.

Delta Gear generates revenue through custom project-based, quote-driven B2B contracts with multi-year program supply agreements, sold direct to OEM customers by a dedicated sales force and program management team. Three operating divisions (Delta Research for automotive prototypes and transmissions, Delta Gear for aerospace and defense production, and Delta Inspection for accredited metrology lab services) share two Livonia facilities and create a full lifecycle offering from prototype development through high-volume production to certified inspection and testing.

Name

Delta Gear

Legal name

Delta Research LLC

Website

https://delrecorp.com

Company type

Private

Founded year

1964

Operating status

Operating

Short description

Delta Gear is a family-owned, NADCAP- and ITAR-certified precision gear manufacturer in Livonia, Michigan, producing spiral bevels, curvic couplings, and related components for aerospace primes (Rolls-Royce, Boeing, Airbus, CFM, Lockheed Martin/Sikorsky, Bombardier), U.S. defense customers, and automotive OEMs.

Ownership category

akta.pro rank

Product category

Precision Gear Manufacturing

NAICS

Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413), Aerospace Product and Parts Manufacturing (33641), Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing (336419), Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612), Mechanical Power Transmission Equipment Manufacturing (333613), Motor Vehicle Transmission and Power Train Parts Manufacturing (33635)

SIC

Aircraft Parts & Auxiliary Equipment, Nec (3728), Aircraft Engines & Engine Parts (3724), Aircraft & Parts (3720), Guided Missiles & Space Vehicles & Parts (3760)

akta.pro primary industry

Gearmotors, Gearboxes & Speed Reducers (IMAGACAF)

Keywords

• Precision gear manufacturing
• Aerospace gear components
• Spiral bevel gears
• Helicopter drive gearing
• Transmission prototyping

Headquarters

HQ city

Livonia

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Supply Chain, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Gear Manufacturing & Production: Production manufacturing of precision gears for aerospace, defense, and automotive applications. Ranges from prototype development to full production runs of up to 2 million pieces per year. Includes spiral bevels, helical, spur, curvic couplings, and specialized gearbox components.
2. Prototype & Development Services: Rapid prototyping of components and assemblies including prototype machining, housings, carriers, gears, pistons, connecting rods, bridge pins, and complete assemblies. Early engineering development including manufacturing feasibility and casting review.
3. Gear Inspection & Testing Services: Contract gear inspection services including CMM inspection, gear inspection up to 39 inches, roundness/cylindricity inspection, laser guided concentricity, surface testing, single and double flank gear testing, NDT services, and transmission dynamometer testing.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Delta Gear manufactures precision gears and gear assemblies — spiral bevel, helical, spur, curvic couplings, ring, pump, starter, and power take-off gears — for aerospace turbine engines, helicopter drive systems, aircraft actuation, defense platforms, and automotive/heavy truck transmissions. Production ranges from single prototypes to full runs of up to 2 million pieces per year, complemented by in-house accredited gear inspection and testing services.

Product overview

Delta Gear operates as part of the Delta Family of Companies, a precision gear and transmission manufacturing organization with three divisions: Delta Research (established 1952) for prototype/production gears and transmission builds; Delta Gear (established 2004) for aerospace and defense precision gear manufacturing; and Delta Inspection (established 2011) for accredited metrology services. The product portfolio centers on precision-engineered gears including spiral bevel, curvic, helical, spur, ring, pump, starter, and power take-off gears. Delta Gear serves aerospace markets (turbine engines, helicopter drive systems, actuation), automotive/truck markets (transmissions, differentials, EV components), and defense markets (military vehicle and aircraft gearing). The three divisions work together providing a continuum from prototype development through production to quality inspection and testing.

Differentiator

Problem solved

Functional benefit

Products and services

• Spiral Bevel Gears (Hypoid & Zerol) High-precision spiral bevel gears, including hypoid and Zerol configurations, manufactured for turbine engines, helicopter drive systems, and aerospace applications using Klingelnberg G60 equipment and closed-loop grinding systems.
• Curvic Couplings High-precision curvic coupling components produced on hypoid gear manufacturing equipment for joining two or more members with extreme accuracy requirements in aerospace and defense applications.
• Helical Gears (Internal & External) Internal and external helical gears for automotive, aerospace, and industrial applications including planetary gear sets and EV transmissions.
• Spur Gears (Internal & External) Precision spur gears for power transmission applications across aerospace, automotive, and defense markets.
• Ring Gears (Internal & External) High-precision internal and external ring gears for final drive applications and planetary gear sets in both prototype and production volumes.
• Starter Gears Precision starter gears for turbine engines and automotive applications requiring exact timing and high durability.
• Pump Gears Fuel and lube pump gears for turbine engine applications with super-finished surfaces for reduced wear and vibration.
• Power Take-Off (PTO) Gears and Assemblies Power take-off gears and assemblies for aerospace and automotive drivetrain applications.
• Turbine Engine & Auxiliary Power Unit Components Complete turbine engine gearbox components including PTO assemblies, inlet gearboxes, accessory gearboxes, fuel and lube pump components, air turbine starter gears, and machined housings for commercial and defense aircraft turbine engines and APUs.
• Helicopter Drive System Components Prototype and production helicopter drive system components including main rotor transmission gears, tail rotor gearbox spiral bevels, shafts, and couplings for military and commercial helicopters.
• Actuation Gears High lift, leading edge, trailing edge, and skew detector gears for commercial and military aircraft including rack and pinion and planetary motion control units.
• Transmission Builds Complete transmission assemblies including 9 and 10-speed automotive transmissions, heavy-duty and medium-duty truck transmissions, planetary gear sets, electric car transmissions, and reduction gearboxes.
• Automotive & Truck Differential Components Differential components including helical and spur gears, final drive gears, spiral bevel gears, gear and spline shafts, carriers, machined housings, and clutch components for automotive and heavy truck applications.
• Prototype / Development / Production Services Rapid prototyping and production services using Electronic Discharge Manufacturing (EMD) for components up to 40 inches, including early engineering development, manufacturing feasibility, and productability cost optimization.
• Other Markets Components Precision components for missile systems, marine transmissions, machined gearbox housings, turbine engine starter decouplers, and compound gears serving various industrial applications.
• Inspection & Testing Services Comprehensive gear inspection and testing services including gear inspection up to 39 inches (1 meter), roundness/cylindricity inspection, CMM inspection with Revo Scanning Head, single and double flank gear testing, and Nadcap certified NDT (nital etch, temper etch, magnetic particle inspection).

Quantifiable outcome

• 20,000,000+ gears produced over the past decade
• +3 more outcomes

Named customers9 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Ten partnerships are on record, tiered core and flagship.

• Gleason Metrology SystemscoreTechnology or Integration · 11 May 2018Gleason upgraded Delta Research's two SIGMA 3 gear inspection systems to like-new condition. Installed SP80H Renishaw fully digital 3-D scanning probe system and GAMA software suite, returning X and Z axes to like-new condition. This partnership added important inspection capabilities and functionality on par with current generation machines.
• CFM International (GE/Safran)flagshipStrategic or Co-development Partner · 21 December 2017Delta Gear won LEAP turbine engine production gear business. The LEAP engine powers the Airbus A320 neo, Boeing 737 Max, and Comac C919 commercial passenger aircraft.
• Rolls-RoyceflagshipStrategic or Co-development Partner · 22 February 2017Delta Gear won new gear business on the Trent 1000 turbine engine for Boeing 787 and Airbus A350 aircraft. Production scope includes Bevel, Curvic and Coupling parts. Also won LEAP engine production gear business. Rolls-Royce testimonial states 'Delta is our top gear supplier, with the best quality and on-time delivery.'
• Lockheed Martin / SikorskyflagshipStrategic or Co-development PartnerDelta produces both prototype and production parts for helicopter drive systems including Blackhawk, CH53E & CH53K. Products include Main & Tail Rotor Spiral Bevel Gearing, Curvic Couplings, Spherical Crowned Couplings, and CH53 Helicopter Magnesium Sump Pump Housing.
• General ElectriccoreTechnology or IntegrationDelta Gear serves GE Aviation as a supplier for bevel gear manufacturing. GE bevel gear development and production programs included CFM-56 and PW1000 Pure Power engines.
• Pratt & WhitneycoreTechnology or IntegrationDelta Gear serves Pratt & Whitney as a supplier for turbine engine bevel gears including PW1000 Pure Power engine programs.
• Honeywell AerospacecoreTechnology or IntegrationDelta Gear provides precision gear components for Honeywell Aerospace turbine engine and actuation applications.
• Liebherr AerospacecoreTechnology or IntegrationDelta Gear provides bevel gear manufacturing for Liebherr Aerospace customers.
• Hamilton Sundstrand (UTAS)coreTechnology or IntegrationDelta Gear provides bevel gear components for Hamilton Sundstrand (now part of UTC Aerospace Systems) aerospace applications.
• BombardiercoreStrategic or Co-development PartnerDelta Gear provides Global 7000 business jet actuation gearing including High Lift, Leading Edge, Pinions Gear Assemblies, Sector Rack Gears, and Trailing Edge Components.

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Bonfiglioli Riduttori: Bonfiglioli is a large Italian manufacturer of gearmotors, gearboxes, and power transmission solutions serving industrial, mobile, and renewable markets. Broad incumbent with comparable gear/gearbox portfolio across similar industrial end markets.
• Regal Rexnord: Regal Rexnord is a large diversified power transmission and gear products manufacturer (includes Falk, Foote-Jones, and other legacy brands). Broad incumbent offering gearboxes, gear drives, and power transmission products across many end markets, overlapping with Delta at the industrial gearbox tier.

Direct peers

• Winzeler Gear: Winzeler Gear is a US precision gear manufacturer serving aerospace, defense, automotive, and industrial customers with spiral bevel, helical, spur, and worm gears. Closely comparable mid-sized specialty gear manufacturer.
• Gleason Corporation: Gleason is the largest US-based manufacturer of precision spiral bevel, hypoid, and spur gears and also supplies the metrology systems (SIGMA 3, GAMA software) used by Delta. Direct competitor in aerospace and automotive precision gears and a strategic technology supplier to Delta.
• Overton (UK) Industrial Gears: Overton is a UK-based precision gear manufacturer serving aerospace, defense, and industrial markets with spiral bevel and spur gears. Comparable specialty precision gear maker competing in similar European aerospace primes.
• Klingelnberg (Liebherr): Klingelnberg is Delta's primary equipment supplier (G60 spiral bevel grinders, KIMoS closed-loop software) and is itself a major precision bevel gear manufacturer serving aerospace, wind, and industrial markets. Most direct head-to-head competitor in aerospace spiral bevel gears globally.
• Arrow Gear Company: Arrow Gear is a US precision gear manufacturer specializing in spiral bevel, zerol, and hypoid gears with deep aerospace and defense exposure. Highly comparable specialty tier-2 gear maker competing for similar OEM slots.
• Indiana Tool & Manufacturing: Indiana Tool & Manufacturing produces precision spiral bevel, hypoid, and curvic coupling gears for aerospace, defense, and industrial markets. Comparable specialty gear shop competing for similar tier-2 OEM slots.
• Mazzei Gear: Mazzei Gear is a US-based manufacturer of precision spiral bevel, hypoid, and zerol gears for aerospace, defense, and industrial applications. Closely comparable niche precision gear maker with similar aerospace customer mix.

Regional players

• Stokvis Group: Stokvis is a UK-based gear manufacturing and precision engineering firm serving aerospace, defense, and industrial markets with bevel, helical, and spur gears. Comparable regional precision gear specialist competing in similar European aerospace primes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/delta-gear-co

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Delta Gear