We use cookies to provide you with a better experience. By continuing to browse the site you are agreeing to our use of cookies in accordance with our Privacy Policy.
While safety functions have been integrated into drives packages for some years now, the current trends are very exciting, from many angles. Today,
a full complement of safety functions can be implemented at the front-end of a system design on all types of production machines, including printing, packaging, converting,
materials handling and other equipment used throughout American industry.
In this special news section, the editors of Power Transmission Engineering have gathered the latest product news
and information from the gears and gear drives sector.
American Bearing Manufacturers Association (ABMA) Standard 9 and ISO 281 give equations for calculating
the basic dynamic radial load rating for ball bearings. These equations are based on a number of assumptions, many
of which are not valid for thin-section bearings. (Thin-section bearings are described in ABMA standard 26.2.)
Nevertheless, many thin-section bearing catalogs report load ratings based on these equations. Kaydon has developed a new method for calculating the dynamic radial load rating for thin-section ball bearings. The new method uses the contact stress and the number of stress-cycles-per-revolution to calculate the capacity. The new numbers are based on five years of actual test results. These equations can also be used to calculate the dynamic radial load rating for four-point contact ball bearings, which are not covered in ABMA standard 9 or ISO 281.
Suggesting a bicycle is environmentally
friendly is stating the obvious. But
the Copenhagen Wheel, unveiled at the
2009 COP15 United Nations Climate
Conference, is taking green technology
and cycling in a new direction.
Despite posting its slowest quarter
since early 2007, AWEA remains
optimistic that the wind industry can
and will work successfully with the
revolving doors in Washington.