Product Description:

The 8JSA43.R0050D000-0 is a synchronous motor manufactured by B&R Automation for the 8JS Synchronous Motors series. It functions as a servo-grade rotary actuator in industrial automation, converting electrical input into controlled mechanical motion for machine axes. When paired with a compatible drive controller, the motor provides repeatable speed and torque response for packaging systems, material-handling equipment, and general motion applications. Its compact form helps support installations where available space is limited and where low added heat at the machine is preferred.

A nominal speed of 5000 RPM sets the motor’s continuous operating limit before thermal derating may be required. Generated heat dissipates through self-cooling, so convective airflow over the frame removes heat without extra fans or coolant plumbing. Rotor position is detected by an integrated resolver, whose analog sine-cosine signals remain usable in electrically noisy environments and at elevated temperatures. Its measurement precision of 10 angular minutes supports indexing and moderate-accuracy contouring in coordinated motion tasks. Mechanical attachment uses flange mounting, permitting direct bolt-up to gearboxes or machine plates while keeping the drivetrain short and reducing the chance of alignment error.

Power and feedback leads exit through an angled swivel connector, allowing cable rotation to relieve strain in narrow cabinets and along confined machine frames. The motor uses stator diameter code 4 and axial length code 3, which indicate its frame proportions and active length. A smooth shaft suits clamp or shrink-fit couplings where low play is required for accurate transmission of motion. The motor is supplied without a holding brake, so external load retention is needed when the axis must remain fixed at standstill. Because it also lacks an oil seal, the unit is better suited to dry and clean operating areas than to environments with liquid contamination.