Motor Specification and Fit
The Mitsubishi HG-MR43 is a servo motor from the HG-MR series, classified as ultra-low inertia and small capacity. It delivers a rated output of 0.4 kW across a speed range of 3 to 3000 r/min, making it suited for applications requiring rapid acceleration and deceleration of light loads, such as pick-and-place modules or small indexing tables. This variant includes an electromagnetic brake (designation B), which holds the motor shaft in position when power is removed. For vertical-axis applications or any load that must not drift during a power loss, the brake is a necessary feature — without it, the axis would back-drive. Confirm the brake release voltage matches your drive's brake control output.