Philadelphia Gear

High Speed Gearboxes

High speed gearbox applications are demanding. It is only with the utmost dedication to design and manufacturing best practices that the kind of speeds that are required by the power generation, gas and oil exploration, refining, and pipeline/pumping industries, among others, can be achieved.

To further complicate matters, these units are often placed in some of the harshest operating environments in the world. Whether your application is offshore in the North Sea or the Gulf of Mexico, or land-based on the frozen north slope of Alaska or the sun-baked Sahara desert, Philadelphia Gear high-speed drives have an unparalleled record of long-term reliability.

As a founding member of the American Gear Manufacturer’s Association (AGMA), as well as a current member and technical contributor to the American Petroleum Institute (API), Philadelphia Gear is uniquely positioned to serve the worldwide high speed gearbox market with products that are engineered for the toughest applications.

Greater Reliability Demanded by Higher Throughputs

Plant trends are clear – do more with less. This means that rotating machinery in process industries is running harder, faster, and is challenged to transmit more power than ever before. Advanced gear design and manufacturing capabilities developed at Philadelphia Gear, plus extensive operational field experience, make it possible for us to meet these exacting requirements.

Philadelphia Gear’s long history in serving this market is evidenced by the fact that we have units successfully operating in the field that are rated up to 80,000 HP, have shaft speeds as high as 70,000 RPM, and pitch line velocities sometimes exceeding 35,000 feet per minute. Taken together, we offer a perfect blend of world-class engineering, long-term reliability and highly competitive initial cost.

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Features You Need, Benefits You’ll See

It all comes down to performance. All the features and benefits in the world don’t mean a thing if a unit doesn’t run reliably. For 125 years we’ve made gearboxes with one goal in mind: to provide the highest possible levels of uptime, all the time.

  • Housings – Rugged design adds strength and rigidity, helping to maintain precise alignment of gears and bearings. Custom cast or fabricated housings available.
  • Bearings – Split, steel-backed, Babbitt-lined precision journal bearings with thrust faces engineered to account for axial loads.
  • Shafts – Machined from heat-treated, high quality alloy steel. Oversized to maintain gear alignment and protect from overload.
  • Gears – Designed, manufactured and assembled with state-of-the-art technology; through-hardened, or case carburized steel forgings; precision hobbed and ground for accuracy and superior finish.
  • Pinions – Integral with shafts, precision hobbed and ground in either case carburized or through-hardened versions per specifications.
  • Seals – Aluminum labyrinth seals to prevent shaft leaks at extreme temperatures.
  • Efficiency – Over 98% running at full capacity.
  • Dynamically Balanced – Assures all rotating elements run smoothly at high speed.
  • API / Instrumentation – Built to API standards as required, with a wide range of instrumentation options that satisfy any application requirements.

Testing in the Shop Achieves Optimal Performance in the Field

Full-speed tests of high speed drives under variable conditions, together with the use of sophisticated instrumentation to analyze vibration, sound levels, lubrication and gear mesh frequencies is a standard operating procedure at Philadelphia Gear. Shaft vibrations are monitored on both “X” and “Y” axes to ensure reliability and acceptable levels of sound, oil and bearing temperatures, and gear tooth patterns are thoroughly checked and documented.

By testing our gearboxes at field operating speeds our customers have the peace of mind in knowing their Philadelphia brand gearboxes will do what they are supposed to do once they are installed, a promise that is backed by one of the best warranty programs in industry: 5-years, regardless of how demanding the application or operating enviromnent.

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