8MSA3L.R0-42 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 8MSA3L.R0-42 is part of the 8MS Three Phase Synchronous Motors series and features self-cooling with a motor size of 3 and length L. This motor has a nominal rated speed of 6000 rpm, a smooth shaft end, and uses a BRX resolver for encoder technology. It permits up to 200 Newtons of axial force during installation and does not have a holding brake or oil seal equipped.
Internal Product Review
The 8MSA3L.R0-42 is a B & R Automation three-phase synchronous motor with self-cooling and a rated nominal speed of 6000 rpm. Resolver feedback and ±1 angular minute non-linearity support accurate commutation and stable motion control. Rated 6000 rpm remains a strong advantage for dynamic servo applications.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The 8MSA3L.R0-42 is a three-phase synchronous servo motor produced by B & R Automation for the 8MS Three Phase Synchronous Motors series. Intended for integration with compatible AC servo drives, the unit transforms electrical energy into precise rotary motion for indexing tables, carton formers, and ancillary axes in automated production lines. Its internal BRX resolver provides the drive with the rotor angle needed for real-time vector control during positioning and speed regulation tasks. This feedback allows the controller to monitor shaft movement and correct deviations as operating loads change.
The motor has a size 3 frame with a smooth exterior housing that relies on self-cooling, so no external fan or liquid circuit is required to remove heat from the stator. The rotor operates at a nominal speed of 6000 rpm, while the winding has a large relative rated torque class that supports rapid acceleration of mid-mass loads. During installation, the shaft can withstand axial press forces of up to 200 N, allowing a gearbox or coupling to be installed without damaging the internal bearings. Output power is transmitted through a smooth shaft end, which accommodates clamp collars or interference-fit hubs. The motor is supplied without a holding brake, so an external holding mechanism may be necessary when a load must remain stationary after power is removed. It also has no oil seal, and suitable external protection should be used when the shaft may be exposed to oil or other contaminants. The resolver supplies analog sine-cosine signals for motor commutation and closed-loop motion control.
Power and feedback conductors are routed on the A-side of the stator housing, which helps keep cabling clear of adjacent machine components. The stator stack uses a length L housing that increases the active copper area without changing the flange dimensions. The BRX transducer maintains signal nonlinearity within ±1 angular minute, supporting consistent phase alignment during controlled motion. Its absolute accuracy remains within ±10 angular minutes across the operating range. These accuracy limits allow the drive to calculate rotor position from the resolver signals while regulating torque, velocity, and shaft position.
