(Qty. 50) 606-2RS High Quality Two Side Sealed Ball Bearings 6x17x6 606RS
The bearings feel well made and slide into place with only a light touch of grease.
606-2RS High Quality Two Side Rubber Seal Ball Bearing 6x17x6 606 2RS 606RS
These bearings help the wheels turn freely and keep the setup balanced on rough surfaces.