Responsible for transmitting movement and generating energy for the machining process, spindles endure significant stress in a machine tool. Their malfunction can lead to dimensional inaccuracies in the part or poor surface quality, making regular maintenance essential. To support this need, the following guide highlights companies that provide spindle maintenance services. Each participant has specified the tasks they perform—such as reconditioning, technological upgrades, predictive maintenance, and more—along with the types of spindles they service. Interested parties can also find information about service locations and average delivery times.