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High-performance gear reducers keep pace with latest servomotors
. To understand the reasons for this requires a basic under-standing of geartrain dynamics and gear tooth design, as well as the features that separate apparently similar units. BASIC GEOMETRY. Because each gear mesh in fixed-axis gear-heads carries the entire torsional load, loads are limited by the weakest
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Oliver Gear, Inc. (Buffalo, NY), Flame-Hardens the Flanks Gear Hub
Oliver Gear, Inc. (Buffalo, NY), flame-hardens the flanks of large gear teeth to a depth of 0.125 inches on the pitch line without hardening the gear hub. The gears, weighing from 80 to 3500 pounds with diameters from under 13 inches to almost 55 inches, are used for pinions on reducers
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Tooth for Tooth: Gear Cutting
that allows gear-cutting tools to be used with conventional lathes. The new technique enables the cutter head to rotate steplessly all the way around the shaft, thus eliminating the need for costly B axes on the machine and allowing the entire gear-cutting process to be realized without rechucking.
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Evaluating the particle containment effectiveness of face masks and head gear
Sightings Media Kit. Subscribe to MICRO Comments? Suggestions? Send us your feedback. MicroMagazine.com. 11444 W.Olympic Blvd. Los Angeles, CA 90064. 310.445.3700 CLEANROOM/FACILITIES TECHNOLOGIES Evaluating the particle containment effectiveness of face masks and head gear Patrick
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Gear Pump Selection Information
General pump selection: Applicable to the handling of all reasonably clean liquids, preferably having some lubricating value. Also suitable for handling non-lubricating liquids under limited conditions of operation with grease fittings or carbon bearings. Gear Pump, Liquid Pumps - Clark Solutions
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Tooth for Tooth: Gear Cutting (.pdf)
that allows gear-cutting tools to be used with conventional lathes. The new technique enables the cutter head to rotate steplessly all the way around the shaft, thus eliminating the need for costly B axes on the machine and allowing the entire gear-cutting process to be realized without rechucking.
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External Gear Pumps (Copyright Viking Pump, Inc.)
. While external gear pumps are commonly found in cast iron, newer materials are allowing these pumps to handle liquids such as sulfuric acid, sodium hypochlorite, ferric chloride, sodium hydroxide, and hundreds of other corrosive liquids. Externals (head, casing, bracket) - Iron, ductile iron, steel
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Internal Gear Pumps (Copyright Viking Pumps, Inc.)
a wide temperature range as well, handling liquids up to 750°F / 400°C. This is due to the single point of end clearance (the distance between the ends of the rotor gear teeth and the head of the pump). This clearance is adjustable to accommodate high temperature, maximize efficiency for handling high