Drive wheel for driving crankshaft for starting internal combustion engine, has internal gear fastened on crankshaft, and external gear that is permanently connected to starter motor

摘要

#CMT# #/CMT# The drive wheel has an internal gear (8) fastened on a crankshaft. An external gear (7) is permanently connected to a starter motor. A free-running clutch is arranged radially between the internal gear and the external gear. The free-running clutch transmits the driving torque of the starter motor through the internal gear to the crankshaft, in the off state. A retaining ring (29) is provided that surrounds a snap ring (26). The spreading of the snap ring is limited due to the centrifugal force. An annular space is filled with grease (33). #CMT#USE : #/CMT# Drive wheel for a driving crankshaft for starting an internal combustion engine. #CMT#ADVANTAGE : #/CMT# The retaining ring is provided that surrounds a snap ring, and the spreading of the snap ring is limited due to the centrifugal force, and hence ensures assuring the axial fixation of the rolling bearing over the whole speed range of the crankshaft, thus improving the drive wheel. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of a rolling bearing. 7 : External gear 8 : Internal gear 11 : Rolling bearings 26 : Snap ring 29 : Retaining ring 33 : Grease.