Hirobo HI2500045 Ball Bearings 6 x 15 x 5 mm 696ZZ Pack of 2  [HI2500045]

6x15x5 mm 696ZZ Bearings for RC Rotorheads

The Hirobo replacement set includes two 696ZZ shielded bearings measuring 6 x 15 x 5 mm, intended for use in RC helicopter maintenance and smaller drivetrain repairs. The double metal shields reduce contamination ingress while keeping rotational friction low for model components.

Typical uses: these bearings suit shafts and housings specified for 6x15x5 mm items, such as rotor heads, small gearboxes, and motor supports on electric RC helicopters. Fit them when the originals match these dimensions and shield type.

Installation tips and tuning notes: press bearings in by applying force to the outer race with a suitable driver or tube; avoid hitting the inner race. Verify that bearings spin freely before reassembling. Replacing tired bearings often lessens vibration and play, improving rotor smoothness and responsiveness.

Maintenance guidance: keep spare bearings clean and, if needed, use a light model oil for lubrication. Stay away from heavy greases that attract debris, and check bearings periodically for roughness or lateral movement that indicates replacement.