8MSA3L.R0-67 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 8MSA3L.R0-67 is part of the 8MS Three Phase Synchronous Motors series and features a self-cooling system with a motor length of L and size 3. It is equipped with a keyed shaft end, a resolver encoder with ±1 angular minute non-linearity, and has a rated nominal speed of 4500 rpm. The motor permits an axial force of 200 N during installation and does not include a holding brake or oil seal.
Internal Product Review
The 8MSA3L.R0-67 is an 8MS three phase synchronous motor with self-cooling and a keyed shaft for dependable machine integration. Resolver feedback and a rated speed of 4500 rpm give the motor precise, responsive servo performance. A well-balanced choice for motion systems that demand consistent control and efficient operation.
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Product Description:
The 8MSA3L.R0-67 is a three-phase synchronous motor produced by B & R Automation for the 8MS Three Phase Synchronous Motors series. It serves as an electromechanical actuator in automated factories, converting drive-controller current into controlled rotary motion for conveyors, pick-and-place axes, and spindle applications. Its integrated feedback system delivers real-time position data that supports accurate closed-loop operation within multi-axis motion platforms. The motor can respond to changing commands while the controller monitors rotor position and corrects motion errors during demanding production cycles.
Rated operation reaches 4500 rpm, giving the rotor sufficient speed for rapid indexing while retaining thermal headroom. Heat is removed through a self-cooling housing, eliminating the need for forced air or liquid circuits. The shaft can withstand up to 200 N of axial load during coupling or pulley installation, helping protect the bearings against preload damage. Power and feedback lines exit on the A-side, simplifying harness routing when several motors are mounted in parallel. The motor has a large relative rated torque category, providing a higher torque-to-mass ratio than medium-class models in the same series. This combination supports frequent acceleration and deceleration without requiring a separate cooling system around the motor housing.
A keyed shaft provides positive engagement with mechanical components, and the overall envelope combines frame size 3 with motor length L. Position feedback is delivered by a resolver that uses the proprietary BRX winding scheme. Its nonlinearity is limited to ±1 angular minute, and its total precision remains within ±10 angular minutes, enabling fine interpolation inside the controller. The unit is supplied without a holding brake, so an external mechanism or drive-applied torque must retain static loads when the axis is stopped. It is also supplied without an oil seal, requiring the front bearing area to be protected from lubricant splash and other liquids. Suitable guarding around the shaft interface can reduce the chance of contamination reaching the bearing during normal machine operation.
