What's the difference between the sealing ring shaft and the bore?
There is a very simple way, you see the seal specifications can know, generally speaking, such as diameter, x, diameter, X-ray diameter (16x23.3x3.2), the first to write the internal diameter is the axis, and conversely, the outer diameter x diameter, X-ray diameter is the axis!
Hole is mainly used with outer diameter, can be bigger, not small, the axis of the opposite, with more internal diameter, set on the rod is the axis...... Very intuitive.
For hydraulic cylinders, the fixed shaft is used. If it moves with the piston rod, it is the hole. Or, if it is installed on the piston, that is the hole, mainly by mouth to seal the outer lip. On the contrary, if it is sealed by the inner lip, it is used for shafts.
