6309ZZ Deep Groove Ball Bearing 45×100×25mm Heavy‑load For Motor Pump Conveyor Equipment Product Overview 6309ZZ is a heavy‑duty single‑row deep groove ball bearing with dimensions 45×100×25mm. Equipped with double‑sided non‑contact ZZ metal dust shields and factory pre‑filled grease, it is made of high‑strength GCr15 chrome steel. This bearing features larger load‑carrying capacity, low‑friction and quiet running performance. It can withstand radial loads and moderate