7 x 11 x 3 mm Ball Bearings 2 pcs - Hirobo HI2500120 for RC helicopter parts  [HI2500120]

Replacement Bearings 7 x 11 x 3 mm for Small RC Models

This product is a duo of 7 x 11 x 3 mm ball bearings supplied as two pieces for use in small model assemblies such as helicopter rotor components and compact drivetrains. The size and pair format suit common small bearing housings found on light RC gearboxes and linkages.

Installation tips: verify the bore and seating depth before pressing in, use a suitable pressing tool to seat the bearing squarely to prevent misalignment, and check for endplay or binding after installation. Clean the mating surfaces thoroughly if reusing an older carrier.

Performance and upkeep: these low-profile bearings support rotary motion to keep control inputs responsive and rotation smooth; inspect periodically for roughness, corrosion, or play and replace worn bearings in matched pairs.