Hirobo HI2500027 Shielded Ball Bearings 6 x 17 x 6 mm (Pair) for RC Models  [HI2500027]

Small shielded bearings for RC shafts

The Hirobo HI2500027 package contains two 6 x 17 x 6 mm ball bearings, identified by the 606ZZ marking, suitable for use as compact radial supports in drivetrain linkages and rotating assemblies of RC models.

Role and advantages: the bearings lower rotational friction and keep shafts aligned under radial load to ensure smoother torque transmission and steadier rotation. The 606ZZ code shows metal shields on both sides, which help limit ingress of light contaminants while preserving a low profile.

Fitting tips: press the bearing evenly into its housing or onto a sleeve with a soft drift to prevent damage to the inner race, confirm unobstructed rotation after fitting, and retain any specified axial clearance. For servicing, keep bearings clean and apply a small quantity of appropriate oil or grease; avoid over-lubrication which can raise drag.

Upkeep recommendations: check for play or unusual sounds after heavy use and replace bearings in matched pairs if wear is detected; opt for finer lubricants or higher-precision bearings when lower friction is required for high-speed components.