Abstract: A turntable bearing which is particularly well adapted for securing an adjustable airfoil to the fuselage of an aircraft. The disclosed preferred embodiment comprises a ring shaped structure consisting of a lower support ring, an inner and an outer bearing, a tee ring, and an annular bearing plate. A dovetail groove is placed into the top surface of the support ring around its circumference. Within the groove are the inner and outer bearings with the tee ring located between them. Both bearings and the tee ring engage the top surface of the annular bearing plate which is also within the groove.