Product Description:

The R84HEAA-R2-NS-VS-00 servo motor is built by Pacific Scientific within the R Servomotors series. This product is specified for precision industrial automation where commanded drive current must produce repeatable rotary motion under feedback control. By integrating position sensors and torque-dense magnetic components, the motor serves as the active element in pick-and-place heads, indexing tables, or packaging spindles that benefit from rapid acceleration and steady running torque. This arrangement helps the motor respond accurately to changing load conditions during coordinated motion.

With a 7.5" square frame, the motor fits directly onto standard machine plates while keeping cabling clear of adjacent hardware. At standstill, it can deliver 22.5 Nm of continuous torque, allowing the shaft to hold static loads without overheating. During transient moves, the electromagnetic circuit supports a 44.5 Nm peak torque rating, giving extra force for fast starts or brief load disturbances. The motor is rated for 4000 rpm, so the drive can issue high positional updates without exceeding mechanical limits. An English flange mounting pattern aligns the housing to imperial bolts, and the standard enclosure style suits legacy motion modules.

The motor has an inertia of 4.43 × 10⁻³ kg·m², which balances quick response with stable following error. The laminated stack measures 4 inches in length, and its high-speed windings help limit copper losses near maximum frequency. A 24 V DC brake is installed to hold the shaft motionless during power interruptions, and it uses a rare-earth samarium cobalt magnet set that maintains flux at elevated temperatures. The Viton shaft seal limits lubricant egress and supports installation in guarded washdown assemblies, while primary feedback is supplied by a frameless size-21 resolver. That feedback arrangement supports stable commutation and speed control across the operating range. No secondary transducer is fitted.