Product Description:

The R22GMAA-HS-LB-NV-02 is a compact rotary actuator manufactured by Pacific Scientific as part of the R Servomotors series. Designed for precision motion in industrial automation, it delivers closed-loop speed and position control to small mechanical axes and indexers. Rare-earth samarium cobalt magnets provide high flux density for stable motor performance in a compact package.

At the motor’s rated operating point, it can hold a load continuously with 0.6 Nm of stall torque, while acceleration reserves extend up to a peak of 1.62 Nm for brief moves. The armature reaches a top shaft speed of 5300 rpm, making it suitable for fast indexing cycles. Rotor inertia is limited to 0.014 kg·m² × 10⁻³, so drive amplifiers can command rapid speed changes with modest current demand. A 24 V DC brake engages mechanically when power is removed, helping keep the load in position during shutdowns. The housing follows the standard style for this series, the windings use the standard coil option, and a metric flange supports installation on equipment built to ISO dimensions.

The cylindrical frame measures 2.0" OD, giving the motor a small envelope for integration into laboratory instruments and light automation stages. Primary feedback is provided by Hall sensors for commutation, and a secondary channel adds a 1000 ppr encoder with line-driver outputs for accurate velocity and position reporting to the controller. Because there is no shaft seal, the motor should be installed in clean environments or behind protective covers to reduce the risk of particle ingress. The electromagnetic stack is only 2 inches long, which helps the motor fit in shallow mounting pockets and keeps the overall package compact. Metric fastener locations match the mounting arrangement, and the external surface area helps conduct heat away during high-speed operation.