Press-in shaft and hub connection

摘要

The shaft (1) which has a predetermined diameter is pressed into a shaft opening in the cylindrical hub (10) which has a fluid spray groove (13) formed in the wall of the shaft opening. The cross-section of the spray groove is asymmetrical relative to a vertical plane which is perpendicular to the centre axis of the shaft opening and passes through a centre point in the mouth of the groove to the shaft opening. The spray groove has at least one inclined wall with a mean inclined angle formed by an acute angle with the centre axis of the shaft opening in a cross-sectional plane of the groove which includes the centre axis of the shaft opening.