The MR83 is an ultra-compact, precision-crafted single-row deep groove ball bearing designed with an open-type configuration. Engineered for micro-mechanical environments where extreme rotational speeds and minimal friction are top priorities, this unshielded bearing offers unrestricted access for continuous lubrication. Featuring a 3 mm bore, an 8 mm outer diameter, and a slim 2.5 mm profile, the MR83 Open is a crucial component in RC models, medical instruments, and high-tech robotics where space-saving efficiency and ultra-high RPMs are essential.