MR52ZZ 2X5X2.5mm ABEC5 silent running bearing is supplied as a 10piece pack. Each bearing is sized for compact, speed applications and features ZZ shields for basic dust protection and quiet operation. The ABEC5 precision rating indicates a tighter tolerance for smoother rotation and reduced play at speed. Key benefits precision performance: ABEC5 tolerance supports smooth, lowfriction rotation in small, speed assemblies. Quiet operation: designed for silent running in compact bearings and fan assemblies. Dust protection: ZZ shield design helps keep contaminants out to extend bearing life. Compact and versatile: 2 mm bore with 5 mm outer diameter and 2.5 mm width fits many small devices and speed motors. Readytouse pack: 10 pieces per package for convenient replacement and maintenance. Key attributes Model: MR52ZZ Size: 2 x 5 x 2.5 mm (inner diameter 2 mm, outer diameter 5 mm, width 2.5 mm) Type: Shielded bearing (ZZ) Precision: ABEC5 Quantity: 10 pieces Application focus: speed, lownoise operation in compact hardware such as graphics card cooling fans and micro motors Compatibility and suitability Fits shafts with a 2 mm inner bore Suitable for small speed applications where compact bearings are required Commonly used in graphics card cooling fans, small DC motors, and other miniature mechanical assemblies Use cases Graphics card cooling fan assemblies requiring a compact, speed, lownoise bearing Micro DC motors and hobby electronics projects that use 2 mm shafts Small precision devices or compact robotics components where reliable, shielded, speed bearings are needed Package contents 10 MR52ZZ bearings, each 2 x 5 x 2.5 mm, ABEC5, shielded on both sides (ZZ) Notes Ensure proper fitment for 2 mm shafts and correct seating to achieve performance Handle with care to avoid misalignment or overpressing during installation