MR84 deep groove ball bearing

The MR84 is an open miniature deep groove ball bearing with a 4mm inner diameter, 8mm outer diameter, and 3mm thickness. Constructed from high-carbon chromium bearing steel (GCr15) with a resin cage, its seal-free design is ideal for ultra-low friction, high-speed, and clean micro-precision applications such as micro pumps, optical adjustment mechanisms, and electronic clocks.