1. Product Overview The 6904ZZ thin‑wall deep groove ball bearing is designed for space‑constrained rotary assemblies, delivering high‑speed rotation and low‑noise performance.It is widely used in automation and motor equipment where compact installation dimension and dust protection are required. 👉 Get a quote within 24 hours for your project 2. Technical Specifiions Model 6904ZZ Inner Diameter (ID) 20 mm Outer Diameter (OD) 37 mm Width 9 mm Structure Thin‑Wall Deep