Abstract: A roller clutch case comprises two molded halves that snap fit into retention grooves on the cam race when inserted from opposite axial directions. The retention features of the cage halves that fit within the retention grooves are inherently stiff, and occupy most of the circumferential extent of the cage halves. Narrow grooves in the cage halves allow the entire structure to shrink inwardly and re expand, so as to allow the retention features to snap into the grooves in spite of their stiffness. In operation, high pressure oil injected between the cage halves pushes the cage halves axially outwardly, but the cage halves are securely retained by the stiff retention features. The oils is substantially trapped between the cage halves by the biasing of the same retention features into the sides of the retention grooves, with only the relatively narrow grooves providing any leak points. Close clearance cross bars in the cage halves help prevent oil migrating to the grooves.

Abstract: An accordion type roller clutch energizing spring has a specially designed mounting fold which, when pressed radially down and over a flat faced radial cage cross bar, is retained to the cross bar with improved stability. The front and rear leaves of the mounting fold of the spring have a free state separation equal to the basic thickness of the cage cross bar. However, the rear leaf of the spring mounting fold is stamped with an integral bump or the like, which engages the rear face of the cross bar to spread the two leaves apart, creating extra tension in the mounting fold. The front leaf of the mounting fold is thereby kept snug and flat to the front face of the cage cross bar at all times.