2.5 min. The 14 22 5% oil seal refers to its dimensions, indicating a nominal inner diameter of 14mm, an outer diameter of 22mm, and a width of 5mm. These dimensions are meticulously calculated to fit snugly within the housing, creating a robust barrier against fluid loss and foreign particle intrusion. The percentage format is often used in coding or digital platforms for easier processing and identification. Metal O.D. wall type (with a reinforcing inner metal case) 7