When it comes to motors for motion control, engineers face the happy dilemma
of having to choose from many different options. Now, their options have
Baldor Electric recently expanded its BSMC-series brushless motor line, and
showcased its additions at the National Design Engineering Show in Chicago the
week of February 23, 2004. The C-series is now available in three frame
sizes-BSMC80C, BSM90C, and BSM100C. Baldor says they provide up to 780 lb-in of
peak torque and 260 lb-in continuous stall torque. The company adds that speeds
of up to 6000 rpm are standard.
Applications for the series include packaging, material handling,
registration, labeling, and factory automation, among others. The motors are
available with either resolver or encoder feedback, and operate with a wide
variety of controls, including 115, 230, or 460 Vac.
Meanwhile, ThinGap Motor Technologies debuted its TG2300 series NEMA 23
brushless dc servo motor. The company says it features real-time errors of less
than five counts per 81,920 counts.
The motors are for factory automation applications. ThinGap reports that the
peak torque is 574 oz-in for quick acceleration and deceleration of heavy loads
at up to 7,200 rpm. Enabling that feature: patented high-efficiency
electromotive coil technology that can eliminate the need for gearbox
Among things the ThinGap motor doesn't have: cogging or histeresis torque, or
torque-constant roll-off due to saturation.