20-Pack Bearing 629ZZ 9x26x8mm Shielded on Both Sides Miniature Inner Diameter - 2 15/16 inch (2.9375") NJ317MY Nachi Roller Bearing

NJ317MY Nachi Roller Bearing

the 6203NR inner diameter is 17mm

7012CYP4 width is 18mm

6212ZZ Shielded Ball Bearing

20-Pack Bearing 629ZZ 9x26x8mm Shielded on Both Sides Miniature Inner Diameter - 2 15/16 inch (2.9375") NJ317MY Nachi Roller Bearing629ZZ Shielded Ball Bearings Pack of 20 Double Shielded 9mm x 26mm x 8mm This 20 pack of 629ZZ deep groove ball bearings is perfect for mechanical builds, tools, and small motors. Each bearing is double shielded with metal covers to keep dust out and grease in ready to install with no extra prep. Size: 9mm ID x 26mm OD x 8mm wide Double metal shields (ZZ) for clean operation Pre lubricated with grease no maintenance needed Made for steady radial load