Baldor has introduced a range of ultra compact brushless AC servo motors that is aimed at offering machine builders a high performance and low maintenance alternative to stepper motors and DC servos.
The new motors are said to be capable of delivering peak torques of up to 3.8Nm. Combined with other attributes of servo motors such as fast acceleration, the new motors are packaged in small 40 and 60mm square bodies.
Designated the BSM R-series, the new motors are expected to appeal to automation equipment builders seeking to improve the productivity of machinery in applications such as packaging and labelling, materials handling, semiconductor manufacturing, winding and printing.
The action of these motors is virtually “cog free”, says Baldor, adding that the motors provide “very smooth motion at slow speeds”.
BSM R-series users can choose from either 40 or 60mm square frame sizes, and with a further choice of one or two winding stacks. This provides developers with a selection of continuous stall torque ratings spanning 0.16 to 1.27Nm, and peak torques from 0.48 to 3.8Nm. The smallest one-stack motor measures 40mm square by 59mm long, and weighs just 0.4kg. Power and feedback connections to the motors are made by long flying leads.
Users can optionally specify motors with a resolver or 2000 PPR encoder fitted for positional feedback. A further useful option is the addition of a 24 VDC brake.
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