Hirobo HI2500027 Ball Bearing Pair 6 x 17 x 6 mm for RC Drivetrain  [HI2500027]

Low-profile ball bearings for RC applications

The Hirobo HI2500027 comes as two 6 x 17 x 6 mm ball bearings stamped 606ZZ, suited for compact radial support on small shafts in RC electric models and mechanical linkages.

Function and benefits: these bearings reduce friction and support shaft alignment under radial load, aiding smooth torque delivery and reliable rotation. The 606ZZ marking identifies metal shields on both sides to help keep out light contamination while preserving a slim cross section.

Fitting advice: install the bearing by evenly pressing it into its housing or onto a sleeve using a soft tool to protect the inner race, confirm free spin after seating, and keep necessary axial clearance. For routine care, keep bearings clean and apply a light coating of suitable oil or grease; do not overfill which can cause drag.

Care tips: inspect bearings for play or noise after heavy running, replace both bearings together if wear is evident, and choose lower-viscosity lubricants or higher precision bearings when reducing friction at high RPM is required.