SELF-GUIDING CARBON SEAL SYSTEM

An apparatus has a first member (36), a shaft (40, 50) rotatable relative to the first member (36) about an axis (A), and a seal system (100). The seal system (100) has: a seal (102) carried by the first member (36) and having a seal face (106); and a seat (104) carried by the shaft (40, 50) and having a seat face (108) in sliding sealing engagement with the seal face (106). The seal system (100) is a dry face seal system. The seat (104) further includes a seat section (210) having: an outer diameter surface (216) encircled by the seal (102); and a rim (212).