Product Description:

Pacific Scientific manufactures the R43GENA-R2-NS-NV-07 as part of its R Servomotors series. Classified as a servo motor, it is intended for closed-loop velocity and position control on automated conveyors, indexing tables, and pick-and-place mechanisms. The product’s English mounting style matches common NEMA patterns, and its standard housing supports compact machine layouts where space is limited. When paired with a digital drive, the unit supplies precise mechanical power for coordinated motion sequences in multi-axis industrial equipment.

The motor develops a continuous stall torque of 3.9 Nm, meaning it can hold that load indefinitely when cooling requirements are met. Transient demands are handled by a peak torque of 10.4 Nm, providing extra headroom during acceleration or short disturbance events. Its rated speed is 1500 rpm, which gives the operating point commonly used for sizing gear ratios and drive bus voltage. Rotor inertia is 0.22×10⁻³ kg·m², allowing rapid speed changes while helping reduce overshoot in servo loops. The motor uses a 4.25" square frame, which keeps the mounting footprint consistent with the listed English pattern.

A rare-earth samarium cobalt magnet set provides high flux density, so the motor can produce strong torque without requiring a larger frame. Position data are supplied through a frameless resolver of transmitter type, size 21, giving analog sine-cosine feedback for drive commutation, and no secondary feedback device is fitted. Because the unit ships without a holding brake and with no shaft seal, external locking or environmental barriers may be required in applications that need load holding or added contamination protection. The stack is 3 inches long, which helps keep mass low and allows installation behind compact machine guards.