SKF 6311-2RSNRJEM is a single‑row radial deep groove ball bearing with a 55 mm bore, 120 mm outer diameter, and 29 mm width. It is sealed on both sides (2RS) and includes a snap-ring groove (NR) with a steel cage, and it carries a C3 internal clearance specification for higher internal play under heat and load. This bearing combination is designed for general machinery requiring precise, low‑friction rotation in a compact form factor while allowing axial positioning with a snap ring.
