Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•Check your axle size: 627 bearings measure 7 mm bore x 22 mm outer diameter x 7 mm width. Designed for compatible 7 mm skate axles; not a replacement for 608 bearings used on 8 mm axles. Measure your axle before ordering.
•16-bearing pack: Includes 16 bearings, enough for eight wheels using two bearings per wheel. Confirm your skate setup and required quantity before installation.
•Ceramic hybrid construction: Six zirconia (ZrO2) ceramic balls run in bearing-steel races. These are ceramic hybrid bearings, with ceramic balls and steel rings.
•Single metal shield: One fixed metal shield covers one side; the opposite open-facing side provides access for inspection, cleaning and lubrication. Install the open-facing side inward when the wheel design permits.
•Routine care: Keep bearings dry, remove dirt regularly and use suitable bearing lubricant. Check that the wheels rotate freely after installation and avoid overtightening the axle nuts.
