8JSB31.D5050U600-0 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 8JSB31.D5050U600-0 is a synchronous motor from the 8JS Synchronous Motors series with a flange mounting style and a smooth shaft end. It is self-cooled, features a straight single-cable hybrid connection, and operates at a nominal speed of 5000 RPM. This motor comes with an oil seal and does not have a holding brake.
Internal Product Review
The 8JSB31.D5050U600-0 is an 8JS Series synchronous motor with self-cooling and a nominal speed of 5000 RPM. Flange mounting and a straight hybrid single-cable connection support clean, efficient integration in servo assemblies. A smooth shaft and integrated oil seal make this unit a well-executed choice for dependable motion performance.
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Product Description:
The 8JSB31.D5050U600-0 synchronous motor is produced by B & R Automation as part of the 8JS Synchronous Motors series. It is a compact rotary actuator designed to drive positioning axes and speed-controlled spindles in automated machinery. By converting electrical energy into precise mechanical rotation, the unit supports coordinated motion tasks typically handled by servo drives in assembly, packaging, and material-handling equipment.
Its power and feedback conductors exit the rear connector in a straight direction, simplifying cable routing in installations with limited space. The integrated single-cable solution with a hybrid connection combines motor power with encoder signals, so only one cable is required between the motor and inverter. Thermal energy is removed through a self-cooling design that relies on the housing surface and airflow around the machine frame, eliminating the need for external fans. The magnetic assembly supports a nominal shaft speed of 5000 rpm, allowing rapid cycle times when paired with a high-bandwidth drive. Frame dimensions follow the IEC outline for motor size 3, providing consistent center heights and bolt patterns for mounting within machinery.
The housing uses a standardized flange-mounting interface, so it can be fixed directly to gear stages or machinery walls without additional brackets. A reinforced oil seal is fitted around the shaft shoulder to restrict lubricant migration and block contaminant ingress when the motor is installed in light washdown areas. Torque is transmitted through a smooth shaft, which suits clamp or shrink-fit couplings where backlash must be minimized. For applications that provide static load retention externally, the motor is supplied without a holding brake. The motor has a length code of 1, which keeps the housing short for installation in constrained spaces while maintaining adequate electromagnetic torque density.
