Starter device having pinion movement stopper mechanism formed at the helical splines of the output shaft and having reduced diameter thrust washer

A starter device of a front nose type comprising:

• a pinion for driving an engine;
• an output shaft having a front end with a front end face at the extreme front end thereof and having helical splines formed thereon, said pinion moving over said output shaft in an axial direction through said helical splines;
• a front bearing which is disposed in front of said pinion and is fitted to an inner periphery of a front bracket of the starter device, said front bearing supporting said front end of said output shaft;
• a stopper mechanism having a pinion movement stopper, located at the helical splines of the output shaft, which is formed as alternating open and closed helical splines;
• and
• a thrust washer, disposed in front of said front end face of said output shaft, for receiving a thrust load in moving the pinion in an outward direction by abutting said front end face of the output shaft, said thrust washer being press fit into said front bracket of said starter device.