One-way clutch with reaction surfaces

A one-way clutch includes a first race having mutually spaced pockets formed with an opening at a periphery of the first race, each pocket being at least partially bounded by a wall that extends along at least a portion of a margin of the pocket and contains a drive surface. A second race includes a series of alternating notches and cam surfaces formed on a periphery of the second race facing the openings. A plurality of rockers is located in the pockets. Each rocker includes an engagement surface for driveably engaging and disengaging a notch, a reaction surface for contacting the drive surface when the engagement surface driveably engages a notch, and guide surfaces for contacting the pocket wall to guide movement of the rocker from a disengaged position toward an engaged position. Springs, located on the first race, urge the rockers toward engagement with the cam surfaces.