Philadelphia Gear

What Philadelphia Gear does

Philadelphia Gear, founded in 1892 in Philadelphia and now headquartered in King of Prussia, Pennsylvania, is a custom-engineered gearbox manufacturer serving mission-critical industrial applications. The company designs and produces enclosed gearboxes - including low-speed, high-speed (up to 80,000 HP), variable-speed, cooling tower, and pump configurations - plus Main Reduction Gears (MRGs) that transfer propulsion power from ship prime movers to propeller shafts on U.S. Navy vessels. Its MRGs, which can measure up to 15 feet high and 20 feet wide, are designed for 30-50 year service lives and are supplied to multiple Navy ship classes including DDG-51 Arleigh Burke destroyers, LHA-6 America-class amphibious assault ships, LPD-17 San Antonio-class transports, CVN-78 Gerald R. Ford-class aircraft carriers, and FFG-62 Constellation-class frigates. Manufacturing is centered at the Marine Center of Excellence in Santa Fe Springs, California, with reverse-engineering capability using laser-based measurement for legacy equipment without original drawings.

The company operates as a brand subsidiary of The Timken Company (NYSE: TKR), acquired in 2011, and is part of Timken Power Systems, a portfolio that also includes Standard Machine, Smith Services, Schulz Electric, Hamilton Gear, and H&N Electric. Revenue is generated through a quote-based pricing model across five streams: custom gearbox manufacturing, gearbox repair and overhaul for any manufacturer, OEM-equivalent replacement parts, onsite technical field services, and integrated drivetrain solutions combining gearboxes with motors, bearings, and controls. Pricing ranges from tens to hundreds of thousands of dollars per project, with new builds typically requiring 25-35 weeks and emergency repairs ranging from days to a few weeks. The company maintains six regional service centers in the continental U.S. (Birmingham, Delaware/New Castle, Houston, Mokena, Santa Fe Springs) supporting a customer base across power generation, water/wastewater management, marine (military and commercial), mining, petrochemical, and EPC segments. Customers include the U.S. Navy, NYC DEP, New Orleans pump stations, U.S. Army Corps of Engineers, and various industrial operators in coal, gas, hydroelectric, mining, petrochemical, and offshore production. Philadelphia Gear is distinguished by brand longevity (135+ years), defense qualifications, an installed base supported through acquired General Electric marine gear IP, and field-service-led customer engagement.

Name

Philadelphia Gear

Legal name

Philadelphia Gear

Website

https://philagear.com

Company type

Private

Founded year

1892

Operating status

Operating

Headcount range

251–500 employees

Short description

Philadelphia Gear, a 135-year-old custom-engineered gearbox manufacturer and Timken Power Systems brand subsidiary, designs and services enclosed gear drives and main reduction gears for U.S. Navy ships, power generation, water management, mining, and petrochemical operators through six U.S. regional service centers.

Ownership category

akta.pro rank

Product category

Industrial Gearboxes and Power Transmission Equipment

NAICS

Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612)

SIC

General Industrial Machinery & Equipment (3560)

akta.pro primary industry

Gearmotors, Gearboxes & Speed Reducers (IMAGACAF)

akta.pro secondary industries

Propulsion, Shafting & Rudder Repair (Engines, Gearboxes, Thrusters) (IMAJAFAC), Naval MRO, Modernization & Retrofit Kits (IMABAKAN)

Keywords

• Industrial gearbox manufacturing
• Power transmission solutions
• Marine propulsion gears
• Gearbox repair services
• Drivetrain systems

Headquarters

HQ city

King Of Prussia

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Gearbox Manufacturing: Design and manufacture of custom-engineered gearboxes for new and replacement applications, including low-speed, high-speed, variable speed, cooling tower, and pump gearboxes.
2. Gearbox Repair and Overhaul: World-class inspection, overhaul, and complete gear upgrade and replacement services for any gearbox manufacturer. Includes repair of non-Philadelphia Gear brand equipment.
3. Replacement Parts: Gear parts built to exacting OEM specifications, operating as well as or better than originals. Includes open gearing, core components, and gear logic parts.
4. Onsite Technical Services: Field service experts who come to customer locations for gearbox installation, repair, alignment, and emergency services.
5. Drivetrain Solutions: Complete suite of electromechanical products and services including bearing repair, motor repair, and control system design as part of Timken Power Systems.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Philadelphia Gear designs, manufactures, and services custom-engineered enclosed gearboxes and Main Reduction Gears (MRGs) for mission-critical industrial and naval applications, including new and replacement gear drives, comprehensive gearbox repair and overhaul services for any manufacturer, OEM-spec replacement parts, and 24/7/365 Onsite Technical Services. As part of Timken Power Systems, the company delivers integrated electromechanical drivetrain solutions combining gearboxes with motors, bearings, and control systems.

Product overview

Philadelphia Gear is a custom-engineered gearbox manufacturer operating as part of Timken Power Systems, offering over 135 years of power transmission expertise. The company provides a portfolio of products and services including new and replacement gearboxes (low-speed, high-speed up to 80,000 HP, variable speed clutches, cooling tower gearboxes, pump gearboxes), gearbox repair services, replacement parts, and onsite technical field services. Their Main Reduction Gears (MRG) are critical propulsion components for U.S. Navy ships. As part of Timken Power Systems, they also deliver integrated drivetrain solutions combining gearboxes with Timken bearings, Schulz Electric motors, and Smith Services capabilities. The company serves critical infrastructure industries including power generation, water/wastewater management, marine (military and commercial), mining, petrochemical, and EPC sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Gearbox Repair World-class inspection, overhaul, and complete gear upgrade and replacement services for gearboxes from any manufacturer, including non-Philadelphia Gear brand equipment. Includes 3-year warranty on repairs.
• New and Replacement Gearboxes Custom-engineered enclosed gearboxes with options for low-speed, high-speed (up to 80,000 HP), variable speed clutches, cooling tower, pump, and OEM brand replacements, backed by 5-year warranty on new builds.
• Gearbox Replacement Parts Gear parts built to exacting OEM specifications including open gearing, core components, and gear logic solutions, operating as well as or better than the originals.
• Onsite Technical Services (OTS) Expert field service team providing gearbox installation, repair, alignment, emergency gear services, and removal/reinstallation of gear drives at customer locations, with 24/7/365 emergency service availability.
• Drivetrain Solutions Complete suite of electromechanical products and gear services from Timken Power Systems, integrating gearboxes, electric motors, bearings, and control systems from multiple Timken Power Systems brands into one bundled drivetrain solution.
• Main Reduction Gears (MRG) for U.S. Navy Large marine gear systems that transfer energy from ship main power sources (gas turbines, diesel engines, steam turbines, or electric motors) to propeller shafts, designed and manufactured for U.S. Navy ship classes including DDG-51, LHA-6, LPD-17, CVN-78, and FFG-62 Constellation class.

Quantifiable outcome

• Reduced repair costs by 75% compared to first vendor's proposed solution, saving over $3 million for coal-fired power plant
• +6 more outcomes

Named customers11 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eight partnerships are on record, tiered core and major.

• Huntington Ingalls Industries – Newport News Shipbuilding (HII-NNS)coreStrategic or Co-development Partner · 16 February 2021HII-NNS awarded contract to Timken's Philadelphia Gear to supply main reduction gears for the future USS Doris Miller (CVN-81) aircraft carrier. Contract value in excess of $100 million.
• The Timken CompanycoreStrategic or Co-development Partner · 1 January 2011Timken acquired Philadelphia Gear in 2011, recognizing it as a leader in high-performance gear drives for critical defense, energy, and infrastructure applications. Philadelphia Gear operates as part of Timken Power Systems.
• Fincantieri Marinette Marine (FMM)coreStrategic or Co-development PartnerFMM awarded Philadelphia Gear a contract option to deliver main reduction gears for future USS Congress (FFG-63), the second frigate in the Constellation (FFG-62) class of ships.
• Standard MachinecoreStrategic or Co-development PartnerStandard Machine, another Timken Power Systems company, collaborated with Philadelphia Gear to deliver total kiln girth gear solution including reverse engineering, design enhancements, and manufacturing.
• Schulz GroupmajorStrategic or Co-development PartnerSchulz Group supplied electric motors and controller systems as part of Timken Power Systems team for North River wastewater facility electrification project.
• Smith ServicesmajorStrategic or Co-development PartnerSmith Services provided engineering calculations and design support for North River wastewater facility upgrade project as part of Timken Power Systems integrated drivetrain solutions.
• Black and VeatchmajorImplementation/ SI/ Consulting PartnerEngineering firm contacted Timken Power Systems team to develop gear drive specification for NYC North River wastewater facility upgrade project.
• Standard Machine (Canada)majorStrategic or Co-development PartnerStandard Machine facility in Saskatchewan, Canada, provided reverse engineering and manufacturing of swing gear drive for North Dakota mine electric shovel, using sophisticated database of gear drive designs.

Scale indicators10 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• RENK Group: RENK designs special-purpose gear units, couplings, and test systems for military vehicles, naval propulsion, and industrial drives. Closest direct peer on naval/military marine propulsion gearing and large defense programs.
• Hansen Industrial Transmissions (Sumitomo): Hansen designs and manufactures heavy-duty industrial gearboxes for marine propulsion, power generation, and similar mission-critical applications. Closest direct peer on offshore/marine enclosed drives and large-ratio speed reducers.
• Falk (Regal Rexnord): Regal Rexnord's Falk branded gear drives include enclosed gearboxes and renewal systems for heavy industrial applications similar to Philadelphia Gear's core offering. Both compete in the same installed-base repair and replacement market across power, mining, and metals.
• Cone Drive (Timken): Cone Drive, also owned by Timken via the Industrial Motion segment, manufactures precision worm and double-enveloping gear reducers for similar industrial applications. As a sister brand it is comparable both as a peer and as a channel/competition point inside the parent portfolio.
• David Brown (Clyde Blowers Capital): David Brown is a heritage enclosed-drive manufacturer (~150 years old) serving cement, mining, power, and marine markets. Direct overlap with Philadelphia Gear on custom-engineered industrial gear drives for similar heavy industries.

Broad incumbents

• Bonfiglioli: Bonfiglioli is a global Italian manufacturer of gearmotors, gear reducers, and drive systems serving industrial, renewable energy, and marine markets. Competes with Philadelphia Gear in industrial gearboxes with a broader global standard product offering.
• SEW-Eurodrive: SEW-Eurodrive supplies gearmotors, electronic drives, and mechatronic systems across industrial automation. Competes broadly in industrial gear drives, though focused more on standard modular units than Philadelphia Gear's heavy-duty custom work.
• Lufkin Industries (Baker Hughes): Lufkin, under Baker Hughes, manufactures power transmission and pumping solutions including gear reducers for upstream oil & gas, power, and industrial applications. Overlaps with Philadelphia Gear's petrochemical and industrial gearbox business.
• Flender (Siemens): Flender, now a Siemens brand, is one of the largest global industrial gearbox manufacturers. Competitor across nearly every Philadelphia Gear vertical, with much larger international scale and a broader standard product line.

Others

• Standard Machine (Timken): Standard Machine, sister brand under Timken Power Systems, specializes in heavy gear repair, refurbishment, and reverse engineering of large industrial gears including mining shovel and mill drives. Functions as a peer on industrial MRO and as a complement on large-gear reverse engineering.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/philagear
• Facebookfacebook.com/PhilaGear

Revenue estimate

Valuation estimate

Number of profiles

Profiles17 records

Subsidiaries6 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 Philadelphia Gear