... Sprag Cage FDC series is used for the power transmission systems one way clutch. Sprag Cage FDC ... axial and radial loads, lubrication and sealing.The sprag space tolerance must not be exceeded. Inner ... width "e", without any recess, to ensure the freewheel functions correctly as shown on following pages ... steel shafts, or housings. Surface hardness of the finished part should be HRC 60 to 62, ...