Advanced Materials & Tribology supplies Linear Motion Resonant Actuator. 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 Linear Motion Resonant Actuator is used in grooves like Linear Roller and can be fixed securely with thick bolts. The Resonant Actuator is compact in size and is available with installation fittings of SM and SE types.