24x42x9mm Bearing - Non-Standard Ball Bearing24x42x9mm Bearing Non Standard Ball Bearing 24mm x 42mm x 9mm Rubber Sealed, Chrome Steel This 24x42x9mm Bearing is a non standard deep groove ball bearing is made from durable 52100 chrome steel and features rubber seals on both sides for protection against dust and debris. With a unique 24mm bore and 9mm width, it offers a perfect solution for custom applications or replacement in specialty equipment where standard bearings wont fit. Size: 24mm x