Blog

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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Finalists for EY Entrepreneur of the Year

May 7, 2015 | Latest Industry News

GBX Founder among finalists for EY Entrepreneur of the Year 2015 Midwest award. Village of Mukwonago — Bruce Neumiller’s vision for Gearbox Express in 2011 is exactly what the local business has become in 2015: a rapidly expanding wind turbine service company. “We started the business from nothing and built it into a fairly successful […] Read article

Thinking outside the gearbox – gmtoday.com

March 30, 2015 | Latest Industry News

Gearbox Express credits rapid growth to customer service, unique approach MUKWONAGO – Representatives from an Oregon company received hands-on instruction inside Gearbox Express’s Mukwonago facility Tuesday – something that was unheard of a short time ago in the wind energy industry. CEO Bruce Neumiller said up until he and fellow founding members Brian Halverson, chief […] Read article

7th Annual Wind Energy Operations & Maintenance Summit

We’re  hoping to see you in Dallas in a few weeks at the Wind O&M Summit – the event has really taken shape in both content and expected attendance. Key highlights from North America’s premier O&M meeting include: Cutting-edge discussion topics including an all OEM / ISP Power Panel featuring Siemens, GE, Broadwind, Duke Energy, […] Read article

Wind boom fuels Gearbox Express CEO: Bruce Neumiller

July 9, 2014 | Latest Industry News

  See the full article as published in bizjournals.com. 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

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