Hirobo HI2500063 Flanged Ball Bearing 3 x 7 x 2 mm Open Type 2-piece Set  [HI2500063]

RC Flanged Bearing Specification

This Hirobo flanged ball bearing is sized 3 x 7 x 2 mm and is supplied as a set of two pieces for small-scale RC use. The flanged outer ring assists with axial locating in shallow bores where limited clearance is a factor. As an open bearing it provides low friction rolling and requires external lubrication rather than relying on seals.

Installation is best handled by those familiar with small components: seat the flange into a matching recess or secure with a narrow retaining clip in tight spaces. Confirm shaft and bore tolerances prior to assembly, ensure mating surfaces are clean, and avoid exerting force on the inner race to prevent raceway damage. Apply a light bearing oil or thin grease for protection when the bearing is exposed to contaminants.

A correctly installed 3 x 7 x 2 mm flanged bearing will reduce lateral play at linkages and rotor pivots, improving control feel and repeatability. Carry out regular inspections and basic maintenance to extend service life and maintain smooth operation of small drivetrains and linkage mechanisms.