8JSA52.EB025D900-0 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 8JSA52.EB025D900-0 is part of the 8JS Synchronous Motors series and features a nominal speed of 2500 RPM with flange mounting. It has a self-cooling method, a keyed shaft end, and comes equipped with a standard holding brake offering 14.5 Nm of torque. The motor includes an inductive EnDat 2.1 encoder with multi-turn capability and 4096 revolutions.
Internal Product Review
The 8JSA52.EB025D900-0 is an 8JS series synchronous motor with self-cooling. Flange mounting and a keyed shaft support clean mechanical integration in servo assemblies. An Inductive EnDat 2.1 multi-turn encoder adds high-confidence feedback, making the unit a strong motor option for precise motion control.
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Product Description:
The 8JSA52.EB025D900-0 is a synchronous motor manufactured by B&R Automation for the 8JS Synchronous Motors series. It is intended for industrial automation tasks that require closed-loop velocity and position control, such as indexing tables, gantry axes, and feeder drives. By combining a permanent-magnet rotor with an absolute encoder, the unit supplies torque directly to the load and reports angular data to the motion controller. This feedback helps maintain precise coordination with neighboring axes during synchronized machine cycles.
Its nominal speed of 2500 rpm allows the drive to remain within common servo bandwidths while maintaining moderate shaft stress. Position feedback is generated by a 19/12-bit encoder, providing separate single-turn and multi-turn resolutions. The maximum angular deviation remains within ±180 arcsec across the entire operating temperature range. The nonvolatile counter records 4096 complete revolutions, so reference switches are unnecessary after an emergency stop. A spring-applied brake holds the shaft with 14.5 Nm of torque, and the motor uses the standard brake type for the series. The motor has size code 5 and length code 2, which correspond to its electromagnetic stack. An angled swivel connector keeps the cabling within the machine envelope and supports flexible cable routing.
The encoder bus uses the inductive EnDat 2.1 interface, enabling reliable transmission of position and status data through a single pair. Heat is removed through self-cooling, allowing external fans to be omitted when adequate ambient airflow is available. The motor supports flange mounting for direct attachment to a machine surface or compatible gearbox. Torque is transmitted through a keyed shaft, which prevents slip under cyclic loads and provides positive engagement with the connected coupling. An inserted oil seal protects the internal bearing set from lubricants and process contaminants. The multi-turn encoder uses onboard energy storage rather than mechanical gearing to retain position information. The swivel housing directs cable egress away from the motor body, reducing bend stress near the connector during installation and operation.
