Hirobo HI2500097 Ball Bearings 2 x 7 x 3.5 mm (2 pcs) for Small RC Models  [HI2500097]

Replacement bearings for small RC models

This pair of 2 x 7 x 3.5 mm ball bearings is listed as Hirobo HI2500097 and supplied for small-model rotor and drivetrain applications. They are intended as compact replacements where accurate, low-friction rotation is required.

They work well in locations needing radial support and tight shaft clearance such as tail shafts, micro gearboxes, or link pivots. The 602ZZ designation indicates the sealed bearing type used by Hirobo; check the original bore and shaft size before fitting.

Fitment advice: seat the bearing using even pressure on the outer race and make sure not to force the inner race. After pressing in, confirm the bearing runs freely with no binding and that axial alignment is correct.

Maintenance notes: inspect for rough operation, play, or noise and replace both pcs together when wear appears to ensure balanced rotation and steady drivetrain behavior.