8JSA32.R0030D700-0 by B & R Automation

The 8JSA32.R0030D700-0 is a synchronous motor supplied by B&R Automation in the 8JS Synchronous Motors series. The unit serves as a rotary actuator that couples directly to driven machine elements, allowing closed-loop speed and position control in industrial automation cells. It is intended for compact servo axes that need repeatable motion and a direct mechanical connection to the load. As a synchronous motor, it works with a matching drive to keep rotor motion aligned with commanded electrical cycles, which supports precise response during indexing, positioning, and continuous-speed operation.

This model uses a motor size 3 housing with a length code of 2, giving a medium torque envelope while keeping the overall package compact. A nominal speed rating of 3000 rpm sets the electrical base frequency for drive tuning and marks the top continuous shaft velocity. Heat is removed through a self-cooling design that relies on rotor-driven airflow, eliminating the need for external blowers. The stator uses flange mounting, so the frame can bolt directly to a gearbox or machine wall. Power and feedback cables exit through an angled swivel connector, which helps with strain relief and supports tight routing in confined cabinets. Because the motor is supplied without a holding brake, the load must be secured by drive torque or an external locking device during power-off conditions.

Feedback precision is handled by a resolver with an incremental accuracy of 10 angular minutes, and its signal remains resistant to electrical noise. A keyed shaft transmits torque without relying only on clamping friction, which is useful in cyclic loads such as indexing tables and other repeated start-stop motion. An internal oil seal sits behind the front bearing to keep lubricant inside the housing when the shaft passes through splash zones or contaminated areas. The seal also helps protect the front bearing area from ingress during normal machine operation.