The MR106 Open is a high-precision, unsealed miniature ball bearing engineered for internal applications that demand the absolute minimum in rotational resistance. Characterized by its "Open" configuration, this 6×10×3 mm component lacks metal shields or rubber seals, completely eliminating any potential contact drag. By exposing the internal raceways and rolling elements, it allows for unrestricted, ultra-smooth motion. This design is the optimal choice for enclosed mechanical systems operating in clean environments, or within dedicated oil baths where continuous external lubrication is applied.