We at Gearbox Express believe in renewable energy; it is core to our identity. Wind continues to become more and more competitive with other forms of energy, but component reliability, including gearbox longevity, is still not where the industry would like it to be. There are good initiatives underway to better understand the problems. Our mission is to support and be accretive to those initiatives ... (read more)

, as we believe only through knowledge sharing will innovation occur. Our blog has been established for that sole purpose; to share what we are seeing and create a forum for open, anonymous communication. Will you join us in that mission?

Many thanks to all those that have helped get the industry to where it is today. Below is a handful of our favorite articles. Please join our community to comment and or share other information. Moving forward, we will use this section for our miniseries of common gearbox damage modes.

Areas of discussion may include:

  • Intro to wind technology book topics
  • Gearbox vs. direct-drive
  • Gearbox design reliability issues (planetary, high speed failures)
  • Gearbox contamination reliability issues (debris, water)
  • Mainshaft bearing issues
  • Planetary bearing issues.
  • Preventative maintenance practices
  • Predictive maintenance practices
  • Oil change out techniques
  • Gearbox alignment
  • Diagnosing the severity of a gearbox problem (when to perform up tower vs. down tower)
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Wind boom fuels Gearbox Express CEO: Bruce Neumiller

July 9, 2014 | Latest Industry News

  See the full article as published in When Bruce Neumiller started Gearbox Express LLC with Brian Halverson and Brian Hastings, they all thought the market had it wrong when it came to fixing gearboxes on wind turbines. The three founded the company in 2011, a decision Neumiller believes involved more “stupidity rather than intelligence,” he said with a […] Read article

Revolution turns a year old with 30th shipment!

June 3, 2014 | Latest Industry News

Gearbox Express is proud to announce that we have shipped our 30th Revolution gearbox! What began as a series of upgrades designed to address premature failures in the GETS GE 1.5 sle gearbox, expanded into the GBX Revolution. We launched Revolution in May 2013. and have since added additional gearbox models including Winergy and the […] Read article

Gearbox Express celebrates two years of operations!

The Gearbox Express team wanted to celebrate our second year of operation with our customers so we invited a select group to participate in a “Crash Course” of GBX School on April 10, 2014.  Fifteen people experienced a condensed version of our usual two-day GBX School training course.  We included both classroom and shop-floor training […] Read article

Gearbox Express Appoints Director of Engineering

April 29, 2014 | Latest Industry News

James Snelson, formerly of Infigen, joins Wisconsin company MUKWONAGO, WI (April 29, 2014) – Gearbox Express (GBX), the only independent company in North America focused on providing down-tower, wind gearbox remanufacturing services, has appointed James Snelson Director of Engineering. Snelson has more than 12 years of experience in the design and analysis of rotating equipment […] Read article

Bearings a common failure point in mainshaft assemblies

January 9, 2014 | Latest Industry News

No matter what type of turbine model, mainshaft bearings are common failure points. The main reason: spherical roller bearings are not the optimal bearing configuration. Large amount of radial internal clearance (RIC) are needed to facilitate original bearing assembly at the manufacturer. Although this simplifies the assembly at the turbine OEM, this clearance is not […] Read article

Gearbox Express School Schedule

Gearbox Express School provides training from the experts so you can become one yourself. The following dates are now available for enrollment: January 22, 23 March 25, 26 July 15,16 October 7,8 December 9, 10 Learn more and reserve your spot today! Read article

Why are gearboxes failing prematurely?

December 9, 2013 | Latest Industry News

Gearboxes are designed and certified for operation utilizing a prescribed set of loads and speed. But wind blows differently in Ontario than it does in Iowa. If OEM material quality or assembly workmanship is not as designed, site conditions (capacity factor, wind class, curtailment, etc) will dramatically shorten gearbox life. Improper lubricant maintenance will exacerbate […] Read article

Revolution – An industry paradigm shift?

May 1, 2013 | Latest Industry News

We get asked this question often: How long should a gearbox last? There is no simple answer, as the reality is there are many site conditions beyond the owner’s control that have a major influence on this.  In addition, although gearboxes are designed to run a theoretical 20 years given a certain set of site […] Read article

Gear Solutions – Q&A with CEO Bruce Neumiller

April 16, 2012 | Latest Industry News

See the full article as published in Gear Solutions GS: Tell us a little about your background, and how you came to found Gearbox Express with your partners. BN: I’ve always been involved in gearing, first with the Falk Corporation, which was acquired by Rexnord, and then with Hansen Transmissions North America before joining Broadwind […] Read article

Gearbox Express Makes Waves with Brüel & Kjær

April 3, 2012 | Latest Industry News

See the full article as published in Brüel & Kjær Waves Addressing a need that the market is only just learning of, a group of gearbox experts are set to bring a new approach to the industry: an exchange inventory of gearboxes rebuilt to exacting standards – by a company dedicated to just that. The […] Read article