Product Description:

The R43HENA-R2-NS-NV-00 is manufactured by Pacific Scientific as part of its R Servomotors series. This rotary unit delivers programmable motion for conveyors, gantry axes, and other automated equipment by transforming electrical power into precisely managed mechanical output. Integrated into a drive-based control loop, the motor provides the force required for accurate point-to-point moves and stable velocity regulation throughout repetitive production cycles. This makes it suitable for systems that depend on repeatable starts, stops, and directional changes under electronic control.

Rated for a continuous stall torque of 3.9 Nm, the motor can hold loads without overheating during steady-state operation. When commanded to run at its nominal speed of 3700 rpm, it maintains that velocity while staying within the motor’s thermal limits. The rotor’s reflected inertia is only 0.22 × 10⁻³ kg·m², so rapid acceleration is possible with moderate drive current. Rare-earth magnets made of samarium cobalt increase flux density, improving torque linearity and reducing demagnetization risk at elevated temperatures. For transient events such as indexing or rapid starts, the motor reaches a peak torque of 10.4 Nm, giving the machine additional short-term force during demanding motion changes.

Mechanically, the frame measures 4.25" square and carries a stack length of 3 inches, allowing it to fit compactly on English-pattern mounts while still enclosing a standard housing. The stator uses the High Speed winding configuration, which suits applications that require elevated base frequencies. Primary position feedback comes from a frameless resolver size 21, which provides robust analog angle data to the drive, and there is no secondary feedback channel. The model ships without a holding brake, uses no shaft seal, and relies on the enclosure of the driven machine for ingress protection. This arrangement suits enclosed equipment where surrounding hardware manages exposure to dust and fluids while the servo axis remains focused on controlled rotary output.