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Necessity is the Mother of Invention,
goes the bromide, but
this 3-D printing thing is taking
manufacturing to an entirely
different — yes — dimension.
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.
One of our goals at Power Transmission Engineering is to help you
understand, identify and select the best technology for your
mechanical power transmission or motion control applications. With
every project, you have to decide which components to use, and which
suppliers, based on functionality, quality and price. We aim to help you make
those decisions informed by providing the latest information on current
technology, especially when it comes to mechanical components.
John Morehead, national
sales manager of Crouzet Motors
(Vista, CA), was bunkered
down in his office in Palatine,
IL surrounded at all points by
ankle-deep snow from an unfortunately
terrible Chicago’s
winter night.
It seems preposterous in the whimsical, wireless world of today, but in 1977 cinema’s greatest visioneers came together and decided the pinnacle of robotic technology in the future would be a motorized trash can.