8JSA33.R0045D000-0 by B & R Automation

The 8JSA33.R0045D000-0 is a synchronous motor built by B&R Automation and is part of the 8JS Synchronous Motors series. It is used to drive rotary axes where accurate velocity and position control are required in industrial automation cells, packaging lines, and material-handling fixtures. In these systems, the motor works with a servo drive to convert controlled current into repeatable rotary motion. That makes it suitable for axes that must start, stop, and reverse direction with stable feedback. The model is intended for flange installation on machine frames and integrates into the manufacturer's drive platform without external cooling accessories.

This unit reaches a nominal speed of 4500 rpm, supporting fast indexing while staying inside the rated thermal envelope. Heat is removed through a self-cooling design, so airflow around the housing is enough to maintain winding temperatures. Rotor position feedback is generated by a resolver, and its resolution is limited to 10 angular minutes; this level suits moderate-precision motion loops in pick-and-place actuators and similar automated equipment. Electrical and feedback conductors exit through an angled swivel connector, which helps route cables in tight enclosures without excessive bend stress. Mechanical attachment is handled through flange mounting, which centers the motor on the machine interface for consistent alignment.

The shaft interface is a smooth shaft, facilitating couplings that rely on friction or shrink-fit hubs rather than keyways. Because there is no oil seal, the motor is better suited to clean areas where liquid exposure is limited. The absence of a holding brake means the drive must supply continuous torque if static position retention is required. Design coding lists a motor length 3 and a complementary motor size of 3, indicating the housing proportions used within the 8JS family. This combination affects the installed envelope and the available space for the active motor section.