Vacuum Stepper Motors for Extreme Environment. The VSS series of Vacuum stepper motors are designed to be used inside vacuum chambers. This eliminates the use of motion feed throughs that generate particulates. Since the stepper motor is relatively simple in design, it can be adapted to operate in extremephysical environments with a few modifications. Under normal conditions, only the bearings are subject to wear. For extreme environment applications, spezial windings, bearings and lubricants are used, as well as special insulating material and spezial adhesive. To accomodate most extreme environmental conditions, Vacuum VSS stepper motors are provided in different grades. Each grade covers a vacuum rating, a temperature range and a radiation level. Assembly, cleaning and conditioning of the Vacuum VSS stepper motors results in a low outgassing rate which makes Vacuum the reliable choice for all the extreme environment applications. |