High-Performance Design
The BM series consists of Aerotech’s high-performance brushless
rotary servomotors. The motors feature neodymium iron boron magnets
for maximum torque and acceleration in a small package. A skewed
stator design and an eight-pole rotor provide low torque ripple
and smooth velocity. The BM series motors can reach speeds up
to 10,000 rpm and accelerations to 270,000 rad/s2 for improved
machine cycle times. Unlike DC brush-type servomotors, the BM
series are brushless and maintenance free. This makes them ideal
for critical applications where downtime cannot be tolerated.
In addition, the BM series motors have very high power density
resulting in high torque in a compact package. Optional IP65 sealing
make these motors ideal for harsh environments such as machine
tool.
Wide Torque Range
The BM motor series covers a wide range of torque and package
sizes. Continuous output torque ranges from 0.16 N-m (22.5 oz-in) to 31.6 N-m (280 lb-in), with peak torques to 94.9
N-m (840 lb-in). Standard frame sizes include NEMA 17, 23, 34,
42, and IEC 142. This makes it easy to mount any motor to Aerotech’s
gearbox line with no adapter plates. These motors are well-suited
to general purpose and high-end servo applications.
Application Flexibility
The standard motor has a 1000-line encoder (4000-line count after
quadrature), RS-422 line driver output with Hall effect device
outputs for commutation, and MS connectors. Options include increased
encoder resolution, resolver feedback, sealing for IP65 level
protection, brakes, and gearboxes. Standard models can be delivered
from stock and custom variations can be engineered to your requirements
with minimal lead time.
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