ITEM NAME:6006RS Black Rubber Sealed Deep Groove Ball Bearing 30 x 55 x 13mm D5V5 6006RS Black Rubber Sealed Deep Groove Ball Bearing 30 x 55 x 13mm D5V5 Product Name : Deep Groove Ball Bearing;Type : 6006RS Materal : Metal, Rubber;Outer Diameter : 55mm/ 2.16" Inner Diameter : 30mm/ 1.2";Thickness : 13mm/ 0.51" Color : Silver Tone, Black;Weight : 118g Description: Select 6006RS for a sealed bearing, has two contact rubber seals one on each side of the ball bearing. can take electric motor demands if needed. Used widely in industrial machine, electric motor, motorcycle, automobile, power tools and mechanical equipment and other kinds of field. Package Content : 1 x Deep Groove Ball Bearing Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.