Product Description:

The R46GENA-R2-NS-NV-00 is a brushless servo motor manufactured by Pacific Scientific within the R Servomotors series. The unit belongs to the 4.6 stack family of the maker’s platform and is intended for mounting to English-pattern gearboxes or machine frames. As a servo element it supplies closed-loop torque and speed control to positioning tables, pick-and-place heads, and other motion axes in automated cells.

The motor delivers a continuous stall torque of 7.6 Nm, providing steady holding force without overheating during locked-rotor conditions. During acceleration it can reach a peak torque of 20.2 Nm, giving the drive extra headroom for rapid indexing moves. An inertial load of 0.40 kg·m²×10⁻³ allows quick changes in velocity while still permitting stable control tuning. The square frame measuring 4.25″ on each side simplifies flange interchange with other NEMA-style actuators, and a stack length of 6 inches increases the active iron depth so thermal limits align with the stated torque values. Housing and winding styles are both standard, and the catalog code indicates no integrated holding brake, so power-off retention must be handled by the machine mechanism.

Rare-earth magnets made from samarium cobalt maintain field strength across a wide temperature range, supporting the high dynamic output attained in paragraph two. Machine builders fasten the unit with the English mounting interface, removing the need for metric adapters. Position feedback is provided by a frameless resolver, size 21, which feeds absolute rotor angle to the drive without adding encoder electronics; there is no shaft seal, so the motor is intended for clean, dry zones or for installation inside an enclosed housing. Together, these mechanical and sensing features complement the torque, inertia, and form-factor data already covered, yielding a balanced servo package for general-purpose automation.