3 x 7 x 2 mm Flanged Ball Bearing Hirobo HI2500063 Open Type Pair  [HI2500063]

Flanged Bearing for Tight Clearances

The Hirobo HI2500063 is a 3 x 7 x 2 mm flanged ball bearing supplied as two pieces for RC-scale assemblies. The flange on the outer race provides positive axial location in shallow bores and constrained mounting spaces. As an open bearing it offers low rolling resistance but requires external lubrication.

Fitting is simple for those comfortable with small components: locate the flange in a matching recess or secure it with a slim retaining clip when clearance is restricted. Verify shaft diameter and bore tolerances before pressing in, keep mating surfaces clean, and avoid applying force to the inner race to prevent damage. For exposed or dusty environments, protect the races with a light oil or thin grease.

When tuning compact drivetrains and linkages, a correctly seated 3 x 7 x 2 mm flanged bearing helps reduce lateral play at pivots, giving crisper mechanical response. Routine checks and light maintenance will prolong service life and preserve smooth operation.