Advanced Materials & Tribology supplies High Speed Low Noise Linear Motion Guide. Advanced Materials & Tribology offers a wide range of Oil-less self-lubricated Bearings and Plates, Self Lubricating Bushes and Pump Bearings. Advanced Materials & Tribology is an ISO accredited company. The High Speed Low Noise Linear Motion Guide works on circulating mechanism [end cap] and is capable of picking up balls in the tangential direction that allows natural ball motion.