Hirobo HI2500018 Roller Bearing 6 x 10 x 9 mm, 2 pcs  [HI2500018]

Compact replacement roller bearings for precision RC use

This Hirobo HI2500018 roller bearing set contains 2 pcs of compact 6 x 10 x 9 mm bearings intended for RC-scale use, primarily in helicopter and general model component applications. These bearings act as low-profile rotating supports where a tight fit and smooth rotation are required on small shafts and gear interfaces.

In practical service, the bearings help to reduce friction at rotary junctions, stabilize shaft motion, and maintain consistent gear mesh under the light loads typical of model helicopters and similar assemblies. Keep the parts free of grit and handle the bearings carefully to avoid contaminating the raceway.

Installation notes and tuning role:

• Fit: Verify the housing and shaft tolerances match the 6 x 10 x 9 mm form factor before press-fitting to avoid deformation.
• Lubrication: Use a light bearing lubricant sparingly to preserve smooth rotation without attracting debris.
• Alignment: Ensure bearings are seated squarely to prevent side loading, which reduces service life.

Pack contains two identical bearings sold as a set, intended for maintenance or replacement in model assemblies where this size is specified.