8 x 16 x 5 mm Flanged Ball Bearing Pair Hirobo HI2500088  [HI2500088]

Flanged Bearing for Miniature RC Drivetrains

This flanged ball bearing is intended as a small-scale RC component for helicopter parts and compact model assemblies. The item is sold as a pair (2 pcs), with inner and outer sizes noted in the product title to match typical shaft and hub fits used in small RC mechanisms.

The flange provides axial location so the bearing can be seated without additional spacers. Stainless steel races are listed to improve wear resistance under usual model stresses, and the flange helps with seating into motor mounts, gear carriers, and hubs.

When installing, press the bearing evenly until the flange contacts the mating surface, verify free rotation on the shaft and minimal axial play, and confirm alignment with mating gears or collars. Regular maintenance checks detect contamination or wear that would degrade smooth rotation.

From a performance viewpoint, installing fresh flanged bearings in place of worn parts can lower lateral shaft loads and improve gear mesh consistency in small RC drivetrains, contributing to smoother control response in rotor and transmission systems.