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BDE-Mechanical

The new ASME Y14.5, 2009 standard on dimensioning and tolerancing reflects a culmination of effort extending over 15 years.

The authors of "Shoulder-fillet stresses finesse" clarify stress-calculation procedures.

The engineering handbook Roark's Formulas for Stress and Strain has been computerized to run in Excel.

Instrument bearings can be lubricated with oil, grease, or dry films.

The function of a retainer is to maintain proper distance between rolling elements.

In recent years, power transmissions in the 0 to 3-hp range are mostly dc drives.

Variable-pitch drives are the simplest of all mechanical adjustable-speed mechanisms.

Most bearings consist of a relatively limited number of alloys, porous metal, plastics, or other nonmetallics.

Needle bearings are roller bearings with rollers that have high length-to diameter ratios.

When a machine is subjected to a noise-reduction program, bearings are normally involved.

V-belts in classical and single-belt configurations are not optimum from the standpoint of load transfer.

Backlash: The AGMA standards recommend backlash ranges to provide proper running clearances for mating gears.

Belts provide an efficient load transfer between shafts on a wide variety of applications.

Operating most efficiently is a machine's first step to maintaining productivity.

Bearing torque is the moment required to overcome internal friction to start or maintain rotation of one ring while the other is stationary.