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Tapered roller bearings can be set at initial machine assembly to any desired axial or radial clearance. This unique feature enables a designer to control bearings to meet anticipated application operating conditions, and thereby provide
optimum bearing and system performance.
In most applications, gearbox reliability is critical to the productivity of the overall plant operation. So it follows that when industry is looking at the best ways to increase efficiency, reduce downtime, and increase profitability, gearbox performance and reliability are key factors. Designing for repair, and writing effective repair procedures, can speed the service time, and provide a quality refurbishment. The best practices listed in this article are proven, effective methods used to install and remove bearings, seals, gears, couplings and shafts within a gearbox.
Recently I had a disturbing conversation with a colleague here at the office. During the conversation, it became clear to me that my co-worker -- a really
intelligent guy whom I respect a lot -- had no idea how even the most simple electric motor works.
We have just returned from the Electrical Products Group Conference in
Sarasota, Florida. This is our favorite
venue because it allows us to speak
with the CEOs of nearly 25 global industrial companies that include General Electric, United Technologies,
Honeywell, ABB and Emerson, with
combined revenue of perhaps $500 billion.
A new preventive maintenance program at a leading New England Ivy League university demonstrates how the push
for more sustainable "green" building management has led to a growing awareness of a chronic, widespread problem with HVAC motors—electrical bearing damage and failure.
In this paper, Edward Hage, founder of specAmotor.com, an online motor calculation and selection tool, focuses on the overheating of electric motors. Presented here is a calculation
method with which the temperature and heat development of a direct current (DC) motor and a brushless motor can be
predicted accurately.