The radial distance between the axis of the seal bore and the axis of shaft rotation.
The measure of an elastomer’s ability to withstand the deteriorating effect of oil on the mechanical properties.
A seal designed primarily for the retention of oil.
The change in volume of a rubber material due to absorption of oil.
A torodial shaped seal.
The deviation of the shaft cross section from a true circle. Out-of-round is measured as the radial distance, on a polar chart recording, between concentric, circumscribed, and inscribed circles which just contain the trace and are so centered that the radial distance is minimized.