8MSA4M.E0-31
The 8MSA4M.E0-31 is a precision-engineered Metal Bellows Coupling from B & R Automation, specifically designed for the 8MS Three Phase Synchronous Motors series. This compact coupling delivers a rated torque of 1.5 Nm and withstands a maximum torque of 3 Nm, providing reliable torque transmission in critical motion control applications. Its overall length L of 31 mm and outer diameter D of 22 mm allow seamless integration in constrained spaces without compromising performance. Built using an aluminum body for lightweight strength and stainless steel bellows for enhanced durability, this part meets stringent industrial automation requirements. Its combination of robust materials and precise design makes it an ideal choice for reliable coupling in demanding environments.
The technical capabilities of the 8MSA4M.E0-31 coupling center on its exceptional misalignment tolerance and clamping precision. It accommodates a parallel misalignment of 0.2 mm and an angular misalignment of 2°, thus reducing stress on connected shafts and bearings. The coupling secures shafts using a reliable set screw clamping method, ensuring a firm hold under dynamic loads. Dual bore diameters D1 and D2 of 8 mm enable symmetric shaft connections, simplifying installation and reducing inventory. The coupling’s material – body: aluminum and material – bellows: stainless steel combine to offer high strength-to-weight ratio and superior fatigue resistance.
Operational features of the 8MSA4M.E0-31 include an impressive operating temperature range of –40°C to +120°C, guaranteeing stable performance in extreme cold and high-heat conditions. The stainless steel bellows provide inherent flexibility, compensating for minor shaft misalignments while maintaining constant torque transmission. This flexibility minimizes bearing loads and extends the service life of connected equipment, reducing overall maintenance needs. Its compact dimensions and high torsional stiffness deliver precise rotational response, making it suitable for high-speed and high-precision industrial automation tasks.
Integration into existing systems is straightforward thanks to the coupling’s standardized dimensions and robust design. The 8MS Three Phase Synchronous Motors series compatibility ensures plug-and-play installation on B & R drives and motors. Typical applications include servo motor to gearbox connections, conveyor drives, packaging machinery, and robotic joints where precision, durability, and minimal backlash are critical. Engineers will appreciate the combination of lightweight construction, high torque capacity, and misalignment tolerance that the 8MSA4M.E0-31 coupling brings to industrial automation solutions.
