8JSA24.R0080D000-0 by B & R Automation

The 8JSA24.R0080D000-0 is a synchronous servo motor from B&R Automation and belongs to the 8JS Synchronous Motors series. In an automation cell, this motor converts drive controller current into mechanical rotation for indexing tables, pick-and-place axes, and other cyclic loads that require precision at high speed. Its synchronous design supports repeatable motion in equipment that depends on fast starts, controlled stops, and accurate position recovery. Flange mounting permits direct coupling to gearboxes or frames, which reduces alignment error and helps keep the drive train compact.

The motor has size 2 and length 4, a combination that sets stack height, torque potential, and thermal mass. Under rated excitation, the rotor can sustain a nominal speed of 8000 rpm, giving the drive a wide velocity range before field weakening is required. Position feedback is supplied by a resolver, a brushless analog encoder that is resistant to dust and temperature shifts. Its absolute accuracy is specified at 10 angular minutes, so the control loop can maintain reliable rotor position information without an external scale. The smooth cylindrical shaft end eases coupling to backlash-free clamping hubs, while the flange face follows IEC dimensions for compatibility with standard servo gear stages.

Thermal management relies on self-cooling; heat is dissipated through the housing ribs without fans or liquid lines, making the unit suitable for compact installations. Power and feedback leads exit through an angled swivel connector, so cables can be routed inside machine guards without exceeding minimum bend radii. The rotor is produced without a holding brake, so vertical axes must secure loads with external braking or motor torque at standstill. A smooth shaft and the absence of an oil seal lower friction and remove seal wear from routine operation. Because there is no shaft seal, the motor is better suited to dry areas where lubricant ingress is not expected.