Eliminates angular backlash
March 1st 2007 A compact yet rugged LBS cylindrical ball spline from THK is designed to eliminate angular backlash while providing high levels of rigidity and accuracy. The ball splines can transmit torque at high linear and rotational speeds, making them suitable for a applications such as robotics, machine tool, palletising and materials handling systems. THK says they can also be used to replace traditional parallel twinshaft ball bushing mechanisms with a single, lower cost unit. The ball splines are made from cold-drawn and precision ground steel, with three longitudinal ridges positioned at 120° intervals around the diameter of the spline shaft. The spline nut locates onto these ridges and has THK's circular arc ball-race technology, with two rolls of recirculating balls mounted in precision machined raceways between each spline ridge. The ball-race mechanism is designed so the steel balls provide smooth, almost frictionless motion, with minimal heat, noise or wear. More articles from T H K UK: | 
