R2AA04005FX08U Sanyo Denki
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The Sanyo Denki R2AA04005FX08U is a middle inertia servo motor from the R SANMOTION Servo Motors series with a 40 mm flange size and runs at a rated speed of 3000 min-1, reaching a maximum rotation speed of 6000 min-1. It provides a rated output of 50 watts and operates on a 200 volt supply with a rated current of 0.67 Arms. The motor has a peak torque of 0.59 Newton-meters and does not come with a holding brake.
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Product Description:
The R2AA04005FX08U servo motor is manufactured by Sanyo Denki for the R SANMOTION Servo Motors series. This device has a 40 mm flange, belongs to the medium-inertia class, and is intended for closed-loop speed and position control in pick-and-place heads, miniature conveyors, and tool feeders. It converts electrical power from a compatible 200-volt servo amplifier into controlled rotary motion, forming the electromechanical link between the motion controller and the connected load. Its compact frame is suited to machinery that requires responsive movement within a limited installation space.
The motor reaches a maximum shaft speed of 6000 rpm, while its continuous power output is 50 W at a rated speed of 3000 rpm. To sustain that operating point, the amplifier supplies 0.67 Arms, producing a continuous shaft torque of 0.159 N·m. The motor has an electrical time constant of 0.67 ms and a mechanical time constant of 1.7 ms, supporting quick torque changes with limited delay. The standardized square flange simplifies installation in compatible metric machine frames and allows the shaft to align with compact couplings or gear assemblies.
During acceleration, the motor can deliver a peak torque of 0.59 N·m, while its continuous stall torque is 0.167 N·m. The rotor inertia is 0.0376 × 10⁻⁴ kg·m², helping the axis respond quickly to changing motion commands. A torque constant of 0.246 N·m/Arms allows the controller to translate measured current into load estimates for accurate torque regulation. The winding resistance is 9 Ω, which supports current monitoring and protection within the drive electronics. Because the motor is supplied without a holding brake, a vertical axis or other load that can move after power loss requires an external mechanical restraint.
