Cantilever spindle mechanism with vibration-damping device - is protected against loss of damping capability by helical groove in annulus which traps any lubricant leaking into clearance hole

摘要

The free end of the spindle (4) has an assembly section (9) of smaller dia. on which an annulus (20) for vibration damping is fitted. The section extends through a clearance hole in the annulus and is secured to it with a split ring (12). The inner surface of the hole features a helical groove (22) which takes up any lubricant and maintains the effectiveness of vibration damping. ADVANTAGE - Degradation of damping effect by lubricant entering space between inner surface of through hole in annulus and the outer surface of assembly section is reduced.