Bison Gear Adds 650 Series to Verdant Duty(TM) AC Gearmotors
June 24, 2009 by Motion Control Tips Editor
Filed under Gearhead - Gearmotors, Mechanical Components
St. Charles, IL – Following the successful introduction of its 100 in-lb (11.3 N-m) inverter-duty AC gearmotor line, Bison Gear & Engineering Corp. has increased by seven times the output torque capability of its Verdant Duty™ 3-phase AC offering with the introduction of the new 650 Series variable speed gearmotors. Driven by 1/4 or 1/2 hp (186 or 373 W) three phase 230 volt TEFC AC electric motors, these specially constructed inverter-duty gearmotors are designed for long life variable frequency drive operation with continuous duty torque outputs from 148 to 717 in-lbs (16.7 to 81 N-m).
The 650 Series Verdant Duty™ standard product offering is made up of five models with gear ratios from 27.6 to 214.5:1. Like all of Bison’s standard and Verdant Duty™ products, they are supported by Bison’s In-Stock, Instant-Ship (ISIS) program and available from Bison distributors and direct from the Bison website. Complete specifications and CAD drawings for these units are also available at Bison Gear’s new website.
Bison Gear & Engineering Corp.
www.BisonGear.com
How Green is Your Gearmotor?
February 20, 2009 by Motion Control Tips Editor
Filed under Gearhead - Gearmotors, Mechanical Components
Three phase electric motors are more efficient than single phase, but three-phase power isn’t available everywhere. Variable Frequency Drives are today’s answer. When compared to DC speed controls, they offer more features to increase equipment life.
To maximize efficiency of your gearmotor, avoid inefficient gearing. Right angle worm gear reducers can have efficiencies of 50% or lower, while spur and helical gears used in parallel shaft reducers are more typically in the area of 98%. Therefore, it pays to see if offset parallel shaft designs are available which offer higher efficiency.
