DISCOVER WORLD-CLASS GEARBOX REPAIR FROM PHILADELPHIA GEAR®

ANY GEARBOX BRAND. ANY TIME.

GEARBOX SUPPORT YOU CAN TRUST

Managing a critical gearbox issue? Philadelphia Gear® is your one stop for gearbox repair, including reliable, responsive gearbox inspections, overhauls, and upgrades.

With over 130 years of world-class engineering and design experience, we leverage local service, national support, and global expertise to support gearboxes from every brand. Our national network of ISO-certified service and manufacturing centers use state-of-the-art design, grinding, and heat-treating technologies to resolve your toughest challenges.

And with our best-in-industry three-year warranty on regional service center overhauls, you can depend on top-quality performance for years to come.

OUR TECHNICAL SERVICES
  • Condition monitoring
  • Diagnostics
  • Engineered upgrades
  • Gear 101 Training
  • GearLogic™ Preservation System
  • On-site inspection
  • Predictive maintenance
  • Renewal part specification
SUPPORTED ROTATING EQUIPMENT
  • All bearing types
  • Bevel gears
  • Couplings
  • Epicyclic gears
  • Herringbone gears
  • Hydroviscous clutches and brakes
  • Open gears
  • Parallel shift gears
  • Planetary gears
  • Worm gears

WE SERVICE & REPAIR EVERY GEARBOX BRAND

  • Allen Gear
  • Amarillo
  • BHS-Voith
  • Black Clawson
  • Brad Foote
  • David Brown
  • John Brown
  • Chemineer
  • Cleveland
  • Delaval Steam Turbine*
  • D.O. James
  • Elliott
  • Falk
  • Farrell
  • Flender
  • Flender-Graffenstaden
  • Foote Jones
  • General Electric
  • Hamilton Gear*
  • Hansen
  • Hitachi
  • Horsburgh & Scott
  • Lightnin
  • Link-Belt
  • Lufkin
  • Maag
  • Marley
  • Mitsubishi
  • Nuttal
  • Philadelphia Gear*
  • Philadelphia Mixers
  • Renk
  • Siemens
  • Standard Machine*
  • Sumitomo
  • Thyssen
  • WesTech*
  • Western Gear*
  • Westinghouse

 


*Philadelphia Gear, WesTech, Western Gear, Delaval Steam Turbine, Standard Machine, and Hamilton Gear are all registered trademarks of The Timken Company or its affiliates.

MINIMIZE DOWNTIME WITH EMERGENCY OVERHAUL SERVICES

At Philadelphia Gear, we understand how critical an equipment failure can be for your business. That’s why our service team is available 24/7 to help keep your operations running at peak efficiency.


How it works

  • 1
    Reach out
  • 2
    Initial Inspection
  • 3
    Disassembly and cleaning
  • 4
    Assembly and testing
  • 5
    Painting, preserving, and shipment
  • 6
    Rest easy

1 Reach out

With 24/7 gearbox and gear repair service capabilities, our team is standing by and ready to help with your toughest gearbox challenges. Contact our team today with photos of your set to get the process started.

CONTACT

2 Initial Inspection

Onsite or in our facilities, our expert team of specialists will inspect your unit to determine the root cause of the failure. After our teams inspection is over, we’ll provide a detailed report with images.

3 Disassembly and cleaning

Our team takes apart and cleans the unit, and schedules manufacturing for replacement parts. For uprating, we’ll make necessary changes and incorporate them into the manufacturing process.

4 Assembly and testing

Once the components are finished, we completely rebuild and rigorously test the gearbox, measuring endplay, tooth contact and backlash, temperature, sound, vibration levels, and more.

5 Painting, preserving, and shipment

After the gearbox is reassembled and thoroughly tested, we epoxy paint and preserve the unit for storage. Once dried and preserved, we will send your gearbox along to you with documentation to keep it running smoothly for years to come.

6 Rest easy

All overhauls performed at our service and manufacturing centers are backed by a best-in-industry three-year warranty. Should any issues arise with your equipment, reach out to our expert gearbox repair team to get back up and running quickly.

Testing the gearbox after repairs is crucial to ensure that the components have been properly restored and are functioning optimally. It helps identify any lingering issues, guarantees the gearbox’s reliability, and ensures its safe and efficient operation in real-world conditions.

EXTEND THE LIFE OF YOUR EQUIPMENT WITH GEARBOX UPGRADES

Gain greater confidence in your gears with our full selection of upgrade services.

Gearing upgrades

  • Grinding to achieve better tooth geometry
  • AGMA- and API-quality standards
  • Metal-hardening services ranging from through-hardening to case hardening, including nitriding and carburizing

Lubrication upgrades

  • Addition of oil coolers (water or air)
  • Splash lubrication replacement or augmentation, with addition of external lube system
  • Shift to duplex filtration so unit can be serviced while operating
  • Upgrade from lips seals to face seals
  • Install CORE® ferrous metal filtration system

Bearing upgrades

  • Speed and load condition analysis to ensure proper selection
  • Closer tolerance rolling element bearings to extend life
  • Minimize vibration and operating temperatures

Smart add-ons

  • Diagnostic instrumentation that warns against pending failures
  • Stability-enhancing reinforced housing
  • User-friendly oil filtration systems
  • And more

WHAT CAUSES GEARBOX FAILURE?

Gearbox failure can quickly cascade into expensive repairs, unplanned downtime, safety concerns, supply disruptions, and more. Operators should understand the causes of gearbox failure — and be able to spot them — so they can take preventive action before gear drive repair or replacement parts are necessary.

  • 1
    Lubrication-related failures
  • 2
    Overload and fatigue
  • 3
    Component misalignment
  • 4
    Abnormal external forces

1 Lubrication-related failures

The most common cause of gearbox failure is lubrication-related. When components are inadequately lubricated, or lubrication flow is disrupted or inadequate, component wear increases dramatically, leading to gearbox failure.

Similarly, lubrication contamination due to dirt or poor sealing, or the application of incorrect lubricants will also lead to friction, wear, and component damage over time. Gearbox components should be inspected on all surfaces periodically for signs of poor lubrication, foreign substances, or poor cleaning, and corrected if found.

2 Overload and fatigue

It may seem obvious, but stressing gear systems with forces, weights, torque, or other factors beyond their designed specifications can and will cause gearbox failure. Whether the overload is chronic (think pushing a system a little over its rating every day) or prompt (a single decision to overload a system by a large factor), component breakage can include snapped gear teeth, warped housing, and more.

Similarly, fatigue can also cause gearbox failure over time. And whether that fatigue stems from neglected maintenance, environmental stressors, or routine wear and tear, it will reach a breaking point. Machinery operators are encouraged to check for irregular sounds, vibrations, or heat pattens regularly to head off problems before their gearboxes fail.

3 Component misalignment

Gearbox components are precision-engineered within exacting tolerances, and small misalignments of components — notably gear teeth — can steadily increase friction, vibration, heat, and wear that lead to either gradual or immediate gearbox failure.

As part of routine inspection and maintenance, operators should not just check component alignment against manufacturer specifications, but they should also inspect components like gears carefully for signs of uneven wear or stress that can indicate a misalignment.

4 Abnormal external forces

Our experts sometimes find the cause of gearbox failure is not within the gearbox itself, but a force or environmental stressor that contributes to misalignment, stress, overload, or contamination. For example, an unsettled foundation under heavy machinery can reduce or skew support for various components.

Venting or cleanliness changes in an environment can introduce pollutants or corrosive particles to a gearbox. And of course, unpredictable human error can always result in damage that may not immediately be noticed. Inspections should always account for factors outside a gearbox when attempting to diagnose or prevent gearbox failure.

Contact our specialists today if you are experiencing any of these issues.
CONTACT

WE WORK HARDER TO DO IT RIGHT.

Unlike other gearbox companies, we don’t cut corners with a cookie-cutter approach. Instead, we reverse engineer every gearbox or component to exact OEM standards, taking your specific needs into account.

Our experts are trained in gearbox failure root cause analysis. We take the time to provide full disassembly and cleaning, inspection and measurement, engineering evaluation and recommendations, and gearbox repair and spin testing.

That’s why Philadelphia Gear is your first choice for long-term reliability — for products from Philadelphia Gear and any other brand.

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DON’T PUT YOUR OPERATIONS AT UNNECESSARY RISK. CONTACT PHILADELPHIA GEAR FOR EXPERT GEARBOX REPAIR TODAY.

Our service team is standing by to help with your gearbox maintenance and repair needs.

Call 800-766-5120 to get started or contact your regional representative directly by clicking the link below.

Find your regional service center
DON’T PUT YOUR OPERATIONS AT UNNECESSARY RISK. CONTACT PHILADELPHIA GEAR FOR EXPERT GEARBOX REPAIR TODAY.
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