Abstract: An angular contact or oscillating ball bearing (100) in which each ball or rolling element (102) is separated by a friction-reducing toroid spacer (103), which has low starting and miming friction, and which maintains a high degree of precision over an operational lifespan. Within the angular contact or oscillating bearing (100), each toroid spacer (103), disposed about alternate balls or rolling elements (102), is configured with sufficient clearance to allow free low-torque movement of the balls or rolling elements (102), and to minimize wear. The inner ring element (101a) of the bearing (100) includes an inner raceway (105a) disposed between a full shoulder side (109) and a low shoulder or relieved side (107), while the outer ring element (101b) includes an outer raceway (105b) disposed between a pair of full shoulder sides (110a, 110b). Both the inner ring element (101a) and the outer ring element (101b) surfaces are finished to minimize abrasion and wear of the toroid spacers (103).