High speed integrated bearing, drive system
LM76 is the Exclusive North American Distributor of a new high speed integrated bearing and drive system featuring ±5µm repeatability, and zero backlash. This new X-Axis BE125-10 Open Screw Drive System sets new standards for: length of travel, speed, and precision for Cartesian robots and single-axis linear stages.
The 125mm x 86mm x 4,391mm compact linear stage can handle dynamic loads to 500kg. The standard stroke length is 4,000mm and custom stroke lengths to 10m can be specified.
The drive system consists of a precision ground open screw and two pre-loaded radial ball bearings. Additionally, the open screw drive system is supported by bearings spaced every 250mm that prevent screws as long as 10m from whipping, even at 5,000rpm. This is in contrast to a closed screw system (ball screw and nut) which are more limited in length of travel and speed.
The guide system consists of two parallel shafts and 8 preloaded radial bearings. In addition to smooth motion, low vibration, low noise (<68db at 3,000rpm), and minimal heat generation, the BE125-10 Open Screw Drive System is capable of travel speed up to 1.7m/sec, and pitch and yaw accuracy over 4,000mm of travel is just ±0.02mm.
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