Koford Engineering LLC has introduced a new line of 24 V high speed motors with air cooled bearings for long life at speeds up to 200,000 RPM. These motors are 48mm in diameter and are very quiet. Continuous power up to 85 watts is possible. Applications include optical devices and high speed blowers and pumps. Beam choppers can be operated at reduced pressure since the motor only uses air at 0.1 cfm and 1.25 psi. A standard diaphragm pump can reduce pressure in a chamber by 90 percent resulting in reduced power requirements.