The 1FT7 motors are permanent-magnet synchronous motors with very compact dimensions and an optically attractive design. Due to the well proven cross-profile and the rotatable connectors with quick-release locks, quick and easy mounting of the motors is possible. The 1FT7 motors fulfill the highest demands on dynamic performance, speed setting range, shaft and flange accuracy. They are equipped with state-of-the-art encoder technology and optimized for operation on our fully digital drive and control systems. Natural cooling, forced ventilation or water cooling are available as cooling types. With the natural cooling method, heat is dissipated through the surface of the motor, whereas with the forced ventilation method, heat is forced out by means of built-on fans. Maximum cooling and thus maximum power ratings can be achieved using water cooling. 1FT7 motors can be combined with planetary gearboxes to form compact coaxial drive units. The gearboxes are flanged directly to the drive end of the motors. When selecting the gearbox, ensure that its maximum permissible input speed is not exceeded by the maximum speed of the motor. In the case of high operating frequencies, allowance must be made for the factor f2 (see Configuration Manual for 1FT7 synchronous motors). The frictional losses of the gearbox must always be taken into account.