MR633ZZ Ball Bearing - 3mm ID x 13mm OD x 5mm Width - Chrome Steel 7215CYDUP4 the 6306ZZE inner diameter is

the 6306ZZE inner diameter is 30mm

6217-2NSE Nachi Ball Bearing

If you need a reliable

✅ Size: 1" ID x 2" OD x 1/2" width

23224EW33K Roller Bearing

MR633ZZ Ball Bearing - 3mm ID x 13mm OD x 5mm Width - Chrome Steel 7215CYDUP4 the 6306ZZE inner diameter isMR633ZZ Chrome Steel Ball Bearing 3x13x5mm Double Metal Shields High Speed Rated The MR633ZZ is a miniature deep groove ball bearing made from high strength chrome steel, designed for compact spaces where speed and durability matter. With metal shields on both sides and pre lubricated grease, it's ready for high speed performance right out of the box. Pack size: 1 bearing Inner diameter: 3mm Outer diameter: 13mm Width: 5mm Type: Deep groove radial