Components: Ball-bearings (continued), Actuators

This lecture covers the thermal conductivity, torque noise, and lubrication of ball bearings, as well as the working principles and classification of electrical motors and actuators. It delves into the materials, Lundberg-Palmgren life evaluation, assembly, preload, and torque noise of ball bearings. The lecture also discusses the various types of components, including mechanical and electrical components, according to ECSS-Q-ST-60C Rev.2 and ECSS-Q-ST-60-13C. Furthermore, it explores the force generation mechanisms of motors and actuators, such as electromagnetic, brushed, reluctance, and brushless motors, as well as other actuator principles like paraffin, shape memory alloys, and piezo-electric actuators.