2-pack — ideal for single-wheel replacement or first-time testing — Try before you stock up. Perfect for replacing a single worn bearing in your 3D printer, motor, or skateboard wheel without committing to a bulk pack.
608-2RS double rubber seals — tighter protection for precision applications — Rubber seals create a better barrier against fine dust and light moisture compared to metal shields. Preferred for 3D printer axes, extruders, and indoor motorized equipment.
Machine-polished inner and outer races — smooth, quiet, high-speed performance — ABEC-3 precision grade with polished raceways for low noise and minimal friction. Rated to 34,000 RPM with grease lubrication.
100% chrome steel construction — Not carbon steel. Chrome steel (GCr15) offers superior hardness, heat resistance, and longer service life under load. Passes full dimensional tolerance inspection before shipping.
True-to-spec dimensions: ID 8mm × OD 22mm × Width 7mm — Exact fit for all standard 608 applications. Donepart 5-year defect warranty. Contact us if any bearing fails under normal use and we will replace it.
