Product Description:

Pacific Scientific's R45GMNA-TS-NS-NV-00 belongs to the R Servomotors series and serves as a brushless servo motor for industrial automation tasks. The unit integrates into closed-loop drive systems where precise velocity and position regulation are needed for indexing tables, packaging lines, or material-handling axes. By combining a compact frame with rare-earth magnetic construction, it supplies sustained torque while limiting overall size for machines that need high power density in limited space. Its brushless design also avoids commutator wear, which supports repeatable motion in equipment that runs frequent start-and-stop cycles.

With a square frame measuring 4.25" on each side and a stack length of 5 inches, the motor occupies roughly 90 mm of flange width while extending 127 mm axially. The rotor inertia of 0.31 kgm²×10⁻³ supports rapid speed changes while helping the axis remain stable under light loads. Under rated excitation, the unit produces 5.7 Nm of continuous stall torque, and it can deliver up to 15.1 Nm during acceleration or short disturbances. Heat is conducted through the housing without forced airflow, and the standard winding provides balanced electrical behavior during normal operation. A shaft seal is omitted, so the front bearing region remains open to the surrounding environment and is better suited to clean machine areas or guarded installations.

Magnetic flux is established by samarium cobalt rare-earth magnets, enabling high energy density and resistance to demagnetization. Speed feedback is furnished by a Tachsyn transducer that combines tachometer and position functions in one device, and the design does not include secondary feedback. Installation uses a Metric bolt circle and pilot, allowing the motor to fit DIN-pattern gearheads or machines without adapters. Because the construction includes no brake, the drive must provide holding torque or the axis must use an external clamp for vertical loads. The housing style is standard, so forced-air ducts or liquid jackets are not included, and the primary feedback device carries the motion information required by the matching drive.