Professional-grade 689-2Z deep groove ball bearing featuring double metal shields for high-speed dust protection. Engineered with 9mm bore, 17mm OD, and 5mm width for reliable industrial performance. Delivers exceptional dynamic load capacity of 2.34kN and static load capacity of 1.28kN with smooth operation up to 30000 RPM. Ideal for motors, machinery, automation equipment, and transmission systems. Available for retail purchase, wholesale orders, and OEM customization. Fast delivery, competitive pricing, and quality guaranteed.