The 687-2RS is a precision-engineered miniature ball bearing, designed for the most compact and high-speed applications. Its small cross-section, with a 7 mm bore and 5 mm width, makes it an ideal fit for tight installation spaces. Equipped with two non-contact rubber seals (2RS), this bearing offers excellent protection against contamination and ensures long-lasting, maintenance-free operation in devices ranging from dental tools to small RC motors.