15x30x9ZZ Non-Standard Ball Bearing 15mm x 30mm x 9mm15x30x9ZZ Non Standard Ball Bearing 15mm x 30mm x 9mm VXB Bearing The 15x30x9ZZ Non Standard Shielded Ball Bearing is a deep groove ball bearing made from Chrome Steel. It has an inner diameter of 15mm, an outer diameter of 30mm, and a width of 9mm. The bearing is closed with 2 Metal Shields for protection against dust and contamination. 15x30x9ZZ Deep groove ball bearing Material: Chrome Steel Shield Double Metal Shields Lubrication: Self Lubricated