Product Description:

The R45-GENA-R2-NS-NV-00 is a brushless servo motor built by Pacific Scientific and positioned within the R Servomotors series. This unit is intended for precision speed and position control in automated assembly stations, material-handling gantries, and similar closed-loop motion modules. By combining permanent-magnet excitation with electronic commutation, the motor produces repeatable torque under drive command, enabling the axis controller to maintain or vary shaft speed with the fine resolution needed for coordinated multi-axis production lines.

Its continuous stall capability is 5.7 Nm, so the shaft can hold that load indefinitely at zero speed without overheating when adequate airflow is available. For short bursts such as rapid indexing, the motor can supply up to 15.1 Nm of peak torque, giving the system reserve capacity for acceleration or disturbance rejection. Rotor inertia is rated at 0.31 × 10⁻³ kg·m², which supports fast response in high-bandwidth position loops. Installation is simplified by a 4.25-inch square frame that matches standard NEMA 42 bolt patterns, while flux is generated by rare earth (samarium cobalt) magnets that resist demagnetization at elevated winding temperatures. Axial length is held to 5 inches, which helps balance torque output with envelope depth inside compact machinery.

A laminated core and the samarium-cobalt magnetic field help limit thermal rise during repeated acceleration and deceleration cycles, which supports stable operation during frequent start-stop motion. The short stack supports responsive motion, and the rigid square housing helps reduce compliance at the mounting face during rapid reversals. This layout suits indexing heads, vision-guided pick axes, and multi-axis packaging wheels where repeatability matters. It is also appropriate for closed-loop modules that require smooth torque delivery at low speed and quick speed changes during synchronized motion.