Product Description:

The R88GSNF-TS-M2-NV-04 is produced by Pacific Scientific and forms part of the R Servomotors series. As a brushless rotary actuator, it is intended for integration into positioning tables, material-handling gantries, and other closed-loop motion stages within industrial automation. Supplied as a bare-shaft unit, the motor converts command currents from a matched drive into regulated mechanical torque across its continuous and peak operating zones.

Its continuous stall capability is 42.2 Nm, meaning the shaft can hold this load indefinitely without exceeding thermal limits. The housing uses a 7.5-inch square frame, which gives the motor a predictable footprint for face mounting to gearboxes or machine plates. Rotor inertia of 8.61 kg·m²×10⁻³ reflects moderate resistance to acceleration, balancing dynamic response with load-matching stability. Permanent magnets made from rare earth (samarium cobalt) maintain flux density under elevated temperatures and contribute to higher torque density than ferrite designs. For short transients such as indexing or rapid deceleration, the motor can reach a peak torque of 86.1 Nm before the control drive enforces current limits.

Speed feedback is delivered through a Tachsyn generator, providing analog velocity and incremental position information to the servo amplifier. The rated mechanical speed is 1900 rpm, which is the continuous operating point at nominal bus voltage. A laminated stack length of 8 inches increases the active iron path, improving thermal dissipation while keeping axial size manageable. The stator uses a standard winding set, allowing interchange with other motors in the series that share identical voltage constants. Because the unit is supplied without a holding brake and lacks a shaft seal, external locking devices and environmental barriers may be required when mounting on vertical axes or in dusty areas.