Sangari's kinematics and dynamics products cover rotating-machinery phenomena and mechanical vibration. The pivot-friction apparatus supports a direct, quantitative study of friction torque, bearing load and rotational speed — including the Coulomb and Stribeck regimes — with measurements streamed to software in real time. The universal vibration system is a configurable single-rotor test stand for investigating shaft vibration, critical speeds, unbalance, and the influence of support stiffness and bearing position on the vibration response — a compact platform for teaching modal analysis and rotordynamics in an undergraduate mechanical-engineering programme.