ECM-LU50FS2CN3BS-LINEAR MOTOR-PBA U50FS3 SET 1.the PBA U50FS3 Set 1 - ECM-LU50FS2CN3BS Linear Motor: a powerful linear motor system for industrial automation that is built to last and be the??precise. Perfect for reliable, flawless operation, it incorporates advanced ECM technology for seamless, efficient motion control.