Product Description:

The R46HCAA-R2-NS-VS-00 is a servo motor produced by Pacific Scientific and belongs to the R Servomotors series. This brushless servo motor converts electrical drive commands into controlled rotary motion for indexing tables, material-handling axes, and other position-critical tasks in industrial automation. Because it is brushless, the motor avoids brush wear and supports smooth operation over repeated duty cycles. Its compact footprint helps it fit into multi-axis assemblies, while resolver feedback supports repeatable positioning and stable speed regulation during changing load conditions. That combination makes the motor suitable for applications that need precise torque delivery without requiring an oversized mechanical package.

Its continuous stall capability is 7.6 Nm, allowing the motor to hold load torque indefinitely without overheating under rated cooling. During acceleration or sudden load changes, it can deliver a peak of 20.2 Nm, giving the drive additional short-term torque margin. The rotor’s reflected inertia is 0.40 × 10⁻³ kg·m², which supports responsive motion while maintaining stable control behavior. Mechanical dimensions follow the 4.25-inch square frame standard, and the magnetic stack extends 6 inches in length to provide more active material for torque production. This balance of torque and inertia supports quick starts and stops in positioning applications.

The integrated 24 V DC brake locks the shaft when power is removed, helping prevent drift on vertical axes. Mounting is provided by a NEMA face flange, so the motor can align directly with common gearheads or machine plates. The motor uses high-speed windings, permitting elevated base speeds before field weakening is required. Torque density benefits from rare-earth samarium cobalt magnets, which resist demagnetization at elevated temperatures. A Viton shaft seal helps limit lubricant migration, and the housing style is standard. Primary position feedback comes from a frameless resolver of transmitter type, size 21, and no secondary feedback device is fitted.