16-03-2020, 07:34 PM
BUT, the key is not meant to provide drive to the hub ! It is there to allow the hub nut to be tightened such that the force between the half shaft and the hub taper is sufficient to provide the drive. I believed that if the tapers were very well lapped together that the woodruff key is not required - but we rarely have hubs / half shafts that meet this condition.