20BM040MXD2A

The 20BM040MXD2A brushless servo motor from Sanyo Denki is a member of the renowned BL Super Servo Motors series, delivering a highly compact and efficient solution for industrial automation. With a Frame Size of NEMA 23 (56 mm) and a Body Length of 56 mm, this motor integrates seamlessly into existing mechanical assemblies. It delivers a Holding Torque of 1.26 Nm and features a Rotor Inertia of 280 g·cm², balancing dynamic response and load stability. The motor’s Shaft Diameter of 6.35 mm with precision keyway machining supports reliable torque transmission. Weighing only 0.78 kg, the 20BM040MXD2A offers a remarkable power-to-weight ratio for space-constrained applications.

Performance characteristics emphasize precision and responsiveness, driven by its Step Angle of 1.8° and dual-phase architecture (Number Of Phases: 2). Electrical parameters include a Rated Current of 2.0 A/phase and a Resistance of 1.4 Ω, harmonized with an Inductance of 3.4 mH to ensure stable current flow and minimize torque ripple. The motor’s Detent Torque of 0.060 Nm is optimized to reduce cogging effects at low speeds, while the maximum radial load capacity of 75 N (at 20 mm from mounting surface) secures robust support under lateral stresses. Integrated cooling fins on the aluminum housing enhance thermal regulation during continuous operation, preserving performance consistency. A high-resolution encoder feedback interface simplifies closed-loop control, enabling real-time position correction and smooth velocity profiles.

Built for reliable integration in demanding industrial environments, the 20BM040MXD2A features durable aluminum construction and protective covers over terminal connections to guard against contaminants. Connectorized power and feedback interfaces accelerate installation and maintenance, reducing system downtime. Its standardized mounting pattern and keyed shaft ensure precise mechanical alignment and simplified coupling to gearboxes, pulleys, or other drive components. Ideal for packaging machinery, pick-and-place systems, and robotic actuators, this servo motor delivers consistent accuracy and repeatability. Long-term brushless design eliminates maintenance intervals for brushes, further enhancing operational uptime in continuous production settings.