Product Description:

The 8JSA51.R0045D700-0 is a synchronous servo motor built by B&R Automation for the 8JS Synchronous Motors series. As an 8JS series synchronous motor, it transforms drive inverter output into accurate mechanical rotation for automated pick-and-place stations, indexing tables, and other multi-axis machines. The unit has motor size 5 and motor length 1, providing a balance between torque capacity and inertia. This configuration allows the axis to accelerate quickly while remaining compact inside standard machine envelopes.

Its rated operating speed reaches 4500 rpm, providing a high speed range for rapid duty cycles. Position feedback is generated by a resolver with a maximum deviation of 10 angular minutes, allowing the controller to maintain tight positioning accuracy. Thermal management is handled through self-cooling, so no external blower or liquid coolant is needed. Output torque is transmitted through a keyed shaft, which prevents rotational slip between the motor and the driven element. These features are contained within the single-stack length configuration, keeping overall mass and inertia moderate for dynamic motion tasks.

Cables and feedback leads exit the housing through an angled swivel connector, providing routing flexibility in confined installation spaces. The front face is prepared for flange mounting, eliminating the need for separate foot plates and supporting direct alignment with compatible machinery. An oil seal protects the shaft opening against dust ingress and lubricant loss, which can reduce contamination around the bearing area. The motor is supplied without a holding brake, so the drive must provide holding torque when the axis is stationary. An external mechanical brake can be added when the application requires the load to remain fixed after motor power is removed.