Posted to News on 29th Apr 2010, 07:27
AUTONOmotor gearmotors use sensorless brushless DC motors
In response to OEMs seeking higher energy efficiency and power density as well as simpler assembly and increased design life for their equipment, Bison Gear & Engineering Corp is introducing a new line of sensorless brushless DC (SBLDC) parallel-shaft gearmotors with powers up to 1/6HP (124W). The new 34 frame AUTONOmotor gearmotors are powered by totally enclosed, non-ventilated (TENV) brushless motors that are sensorless to reduce cost, size and wiring complexity while offering improved reliability and noise immunity compared to brushless motors with shaft-mounted rotor position sensors.
Employing modern DSP technology that facilitates the implementation of sensorless control algorithms and eliminates the need for position sensors (and associated wiring) required in conventional BLDC motor-control systems, Bison's new low-voltage AUTONOmotor parallel-shaft gearmotors are offered in eleven standard versions with gear ratios from 5:1 to 215.6:1 and rated output speeds from 470 to 11rpm with a 10:1 speed range. Speed can be adjusted with either a supplied potentiometer or a 0-5V DC signal. Continuous output torques range from 19 to 300 in-lbs (2.1 to 33.9Nm). The gearmotors employ all-steel gearing and oil bath lubrication for long operating lifetimes.
Suitable for factory automation, packaging equipment, foodservice equipment, alternative energy systems, stationary agricultural equipment and other speciality machinery, the eleven new AUTONOmotor brushless DC parallel-shaft gearmotors are part of Bison Gear's comprehensive In-Stock, Instant-Ship (ISIS) program that supports Bison's distribution partners and offers same-day shipment for orders received before noon (Central Time).
Matt Hanson, vice president, portfolio management at Bison Gear, comments: "The National Science Foundation grant awarded to Bison in 2005 for research on higher efficiency electric motors paved the way for this innovative new brushless DC development. With this being Bison's 50th anniversary year, we are proud to introduce the AUTONOmotor sensorless brushless development as the second offering in the exciting lineup of new products coming from Bison in 2010."
The new AUTONOmotor brushless DC parallel shaft gearmotors are American-made to Bison's high quality standards to ensure reliable, long-life operation and a short supply chain for North American customers. In addition, Bison's Innopreneurial application and design engineering capabilities to customise the standard models to meet specific OEM needs are readily available.
