8MSA2L.R0-42 B & R Automation
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The B & R Automation 8MSA2L.R0-42 is a three phase synchronous motor from the 8MS series with a nominal rated speed of 6000 rpm and a large relative rated torque. This motor has a resolver encoder with a precision of plus or minus 10 angular minutes, features self-cooling, and has a smooth shaft end. It is constructed with a motor size of 2, length L, and supports an axial force up to 200 Newtons during installation.
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Product Description:
The 8MSA2L.R0-42 three-phase synchronous motor is built by B&R Automation and is supplied within the 8MS Three Phase Synchronous Motors series. This unit is intended for tightly controlled motion axes in automated packaging, material-handling, and light machine-tool stations, where electronic commutation delivers constant torque across a wide speed band. By pairing with a dedicated drive, the motor translates command currents into precise shaft rotation for indexing, positioning, or continuous-duty operation. Its synchronous design also supports stable speed regulation when the control loop responds to changing load conditions.
The drive stage can exploit a nominal speed ceiling of 6000 rpm, allowing high throughput without mechanical overspeeding. The motor has a large relative rated torque classification, giving the axis additional load capacity during acceleration bursts or process disturbances. Thermal energy is removed through a self-cooling housing, eliminating the need for external blowers or liquid circuits and simplifying cabinet design. During installation, the shaft may be pushed or pulled with up to 200 N of axial force, so couplings and pulleys can be mounted without risking internal bearing damage. Power and feedback leads exit on the A side, a fixed orientation that can simplify cable routing in multi-axis gantries. The motor uses a smooth shaft end, letting machine builders choose clamping or press-fit transmission elements while avoiding keyway stress concentrations.
Position and velocity feedback rely on resolver feedback that withstands electrical noise and high temperatures common in servo environments. Its transfer accuracy is maintained by a nonlinearity of only ±1 angular minute, so cyclic position error stays minimal even when the drive interpolates microsteps. Long-term repeatability is further supported by a resolver precision window of ±10 angular minutes, permitting stable closed-loop control over the full speed range. This feedback method also supports smooth commutation at low speed and steady response during repeated positioning moves. The motor ships without a holding brake and without an oil seal, so it is best suited to clean, dry areas. Any load that must remain fixed at standstill requires an external holding method.
Frequently Asked Questions about 8MSA2L.R0-42:
Q: What type of encoder technology is used in the 8MSA2L.R0-42 motor?
A: The 8MSA2L.R0-42 motor features resolver-based encoder technology for precise position detection.
Q: What is the rated nominal speed of the 8MSA2L.R0-42 synchronous motor?
A: This model has a nominal rated speed of 6000 rpm, allowing for high-speed motion tasks.
Q: What type of shaft end does the 8MSA2L.R0-42 motor provide?
A: The shaft end of the 8MSA2L.R0-42 motor is smooth, enabling easy connection to coupling devices.
Q: Does the 8MSA2L.R0-42 motor come equipped with a holding brake?
A: The 8MSA2L.R0-42 does not include a holding brake, meaning it cannot maintain position without external power.
Q: What cooling system does the 8MSA2L.R0-42 motor use?
A: This motor is designed with self-cooling, so it does not require additional fan or liquid cooling systems.
