CNBTR  6000ZZ Silver High Precision Steel Single Row Deep Groove Ball Bearing 10mm ID 26mm OD 8mm Thick Pack of 10 With less coefficient of friction, less vibration and noise. Shield design sealed ball bearing. Expect to perform well for a while on the trail mower. Thickness: 8mm/0.31" ; Package Include: 10 x Deep Groove Ball Bearing Applies to: Bearing Steel construction, high quality and great for machines/equipment bearing use.