Engineers typically learn that the bearing L10 life can be estimated using the so called “C/P method” — or the “basic rating life” of the bearing, a method rooted in the 1940s. Major developments have since led to the “modified rating life,” released in ISO 281:2007, which includes the aiso life modification factor. In this paper a succession of equations used for bearing life ratings are reviewed, and current bearing life rating practices are discussed in detail. It is shown that — despite the introduction more than 30 years ago of the adjustment factor of the basic rating life, and the standardization in 2007 of the aiso modification factor — use of these improved calculation methods are not practiced by all engineers. Indeed — many continue referring to the old model as a way of seeking compliance with existing, established practices.

New products within the Industry

News from around the Industry

At SKF, we believe in the longterm development of the U.S. industrial economy. The reindustrialization is supported by a strong university-based research network, a competitive workforce and energy supply from domestic energy resources. However, there are still challenges, particularly regarding the availability of skilled labor. Business, education and governments have a responsibility to work together to ensure this is not the bottleneck in U.S. industrial development. I am particularly pleased with and support the work the National Association of Manufacturers is doing in this area.

News about new Products in the industry.

The complete Product News section from the September 2014 issue of Power Transmission Engineering.

With the addition of Industrial Automation North America (IANA) as well as Motion, Drive & Automation North America(MDA NA), IMTS 2014 has greatly expanded its range of manufacturing technology services. These co-located shows complement the metalworking solutions found at IMTS by bringing in key suppliers from around the world.

The complete Product News section from the June 2014 issue of Power Transmission Engineering.

Collaboration moves bearing modeling and simulation software forward

PTE Video from SKF, LinkedIn contribution from Dassault Systemes, Twitter updates on IFPE 2014 and a shout-out to the Gear Technology blog.