Hirobo HI2500016 Flanged Ball Bearing 4 x 9 x 4 mm - 2pc Pack  [HI2500016]

Compact flanged bearing for rotor and drive use

The Hirobo flanged ball bearing is sized at 4 x 9 x 4 mm and comes as two pieces in the pack. The integrated flange offers a positive locating surface to limit axial movement where depth is constrained.

Built as a rolling-element bearing with steel races, it helps lower friction and preserve rotational alignment in small drivetrains and linkages under light to moderate loading. Compatibility is determined by the 4 x 9 x 4 mm dimension, so match shafts and housings designed for that size.

For best results on models, press or retain the bearing cleanly in the bore, avoid applying side loads to the flange, and confirm a smooth free-spin before finishing assembly. Correct replacements reduce drag and help recover drivetrain responsiveness during maintenance or tuning.

Packing: Sold as 2 pcs per pack.