ECML-SM322190-LINEAR MOTOR 32MM 2190MM SETS 3.The linear motor set ECML-SM321890.three linear motors, measures 32 mm by 1890 mm, made for? the?accurate and the??dependable industrial automation. the ?improving and the??production systems with the performance.ECML-SM322190 Set of 3 Linear Motors, 32 mm by 2190 mm Gain more control over your industrial automation with these three sturdy 32 mm x 2190 mm linear motors.