Product Description:

The 8MSA3L.R0-B5 is a three-phase synchronous servo motor produced by B & R Automation for the 8MS Three Phase Synchronous Motors series. It converts regulated drive power into controlled mechanical rotation for positioning, conveying, and processing tasks in automated machinery. By delivering consistent torque from a compact frame, the motor integrates directly into machine axes where coordinated multi-axis motion and limited installation space are critical. Its construction allows mounting without intermediate gear stages, giving designers a straightforward path to high-precision movement on packaging lines, pick-and-place gantries, and material-handling stations.

At a nominal speed of 3000 rpm, the unit provides a large relative rated torque, supporting rapid acceleration of moderate-inertia loads. Heat is removed through a self-cooling system that relies on internal airflow rather than external blowers. Power and feedback connectors are oriented on the B-side, simplifying cabinet layouts by keeping service points on one face. The shaft can accept an axial preload of 200 N during installation, and its output interface is a keyed shaft end that ensures positive coupling with pulleys or rigid hubs. These mechanical limits align with the drive’s current capabilities to prevent excessive bearing stress during startup and dynamic cycles.

Position feedback is supplied by a resolver built to the BRX format. This sensor maintains nonlinearity within ±1 angular minute and overall precision within ±10 angular minutes for repeatable commutation. The motor is manufactured with frame size 3 and housing length code L, providing a balanced combination of torque density and mass for midsize machines. No holding brake is fitted, so power-off torque retention must be managed externally. The absence of an oil seal limits use to dry environments where fluid ingress is not expected.