8JSA52.E6045D200-0 by B & R Automation

The 8JSA52.E6045D200-0 is a synchronous servo motor from B&R Automation that belongs to the 8JS Synchronous Motors series. It is intended for rotary axes in automated machinery where closed-loop speed and position control are required. Integration is simplified by its series-wide mechanical interface, allowing machine builders to select the correct stator length and rotor inertia while keeping wiring procedures consistent across a line.

The motor reaches a nominal speed of 4500 RPM, so drive controllers can execute rapid indexing cycles without exceeding the continuous thermal limit. Heat is removed through self-cooling; no external fan or liquid circuit is needed, which minimizes cabinet complexity and maintenance. Power and feedback conductors exit through an angled swivel connector, letting cable ducts stay close to the machine frame and reducing bend stress during axis motion. The motor uses flange mounting; the face-mount interface transfers radial and axial forces directly into the housing, keeping alignment accuracy even under dynamic load reversals. Length code 2 and size code 5 indicate the stack height and stator diameter for this frame.

Position feedback is supplied by an optical encoder that generates 2048 signal lines per revolution and delivers absolute angle data with ±20 arcsec accuracy. The EnDat channel uses the Optical EnDat 2.1 protocol, enabling single-cable technology and automatic motor identification at startup. Because the device is single-turn with one mechanical revolution of the code disk, homing routines remain short. A holding brake rated at 14.5 Nm keeps vertical loads motionless when power is removed. The output shaft is a smooth shaft, allowing backlash-free clamping couplings or shrink-disk hubs to be fitted without keyways, which suits high-precision indexing tables where uniform torque transmission is important.