The ALF2D2 series is manufactured by Stieber. It is an indexing freewheel with a maximum capacity of 287500 Nm. This roller type freewheel is self contained, sealed, and bearing supported by two 160 series bearings. The unit oil lubricate before delivery. Its primary function is for overrunning or indexing clutches. It is equipped with two screws for oil filling, drain, and level. It also has a V-ring type shaft seal. Cover and seal are designed to be oil resistant with minimum drag torque.