Abstract: A double flange pop-in bearing produced from a polymeric material for use with various diameter workpieces. The bearing has a longitudinal gap, preferably along the diagonal, with upper and lower flanges to permit insertion into the workpiece by compression and locking of the bearing into place by the effect of the flanges. The top and bottom edges of the bearing are further characterized by notches extending from the longitudinal gap to facilitate compression for insertion into a bore. The bearing may have an optional projection to mate with a notch in the workpiece to restrict rotation of the bearing in the workpiece.