Steinmeyer Inc.'s ball screws are from 3 to 160 mm in diameter and can be customized for
vacuum requirements. All components, including shaft, ball nut body, ball
deflectors and balls are manufactured from stainless steel. Depending on the
application, the ball screw is provided with either vacuum compatible grease or
a dry lubricant coating such as tungsten disulfide or molybdenum disulfide. The
ball nut can be supplied with silicon nitride balls. Typical applications include actuators for use in: aerospace, electron beam
inspection, lithography, synchrotron
research and nanotechnology.
NASA and Boeing developed a huge, carbon composite cryogenic fuel tank for deep space missions, and started testing it last month. The 18-ft cryotank will enable heavy-lift launch vehicles to send both humans and robots into deep space.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.