Ballscrews designed for high speed machine tools.
Press Release Summary:
UltraSpeed series ball screws, available in 16 to 63 mm dia, enable speed ratings to dN = 160,000. With lead to diameter ratios from 0.5:1 to 1:1, linear velocities of 4,000 ipm are possible at acceleration of 2 g and higher. Ball return system uses precision ball deflectors to guide balls into return channel spanning whole nut length. Two-piece deflectors, precision milled from steel, minimize friction, allowing higher speeds with less wear.Original Press Release:
New High Speed Ballscrews With dN = 160,000
Bedford, MA, May 31, 2002 -- Steinmeyer, Inc. will exhibit at IMTS a new line of precision ground ball screws specifically designed for high speed machine tool operation. The new UltraSpeed series ball screws, available in nominal diameters from 16 to 63 mm, enable speed ratings up to and beyond dN = 160,000, or 33% higher than conventional designs. Through advanced thread grinding technology, and with lead to diameter ratios from 0.5:1 to 1:1, linear velocities of 4,000 inches per minute are possible, at accelerations of 2 g's and higher.
According to George Jaffe, Executive Vice President: "The new UltraSpeed line from Steinmeyer offers the machine designer a reliable precise drive mechanism to reach high velocities and accelerations - previously possible only with much more costly linear motors. This innovative product, offering substantially higher dN values than previously available, is an especially relevant solution for HSC machine tools."
This ball screw series is based on a new ball return system that uses precision ball deflectors to guide the balls into a return channel spanning the whole nut length. The two-piece deflectors, precision milled from steel, use a complex geometry-that minimizes friction, allowing substantially higher speeds (33+ %) with less wear compared to conventional tube type return systems. Travel life is increased because noise and vibration levels are significantly reduced. The UltraSpeed system, with a dual-start thread, is available with two preload systems. One uses two-point contact preload with pitch offset in a single nut. The second option is ball oversize preload with double the number of load carrying balls. In both cases, the result is a more compact nut design with improved stiffness compared to conventional designs. For further information call 1-800-297-6403, stop by Booth 4266 at IMTS or visit www.steinmeyer.com.
