2 Pcs Mechanical equipment: 1 x Deep Groove Ball Bearing & 1 x Ball Bearing Closed with 2 metal shields to protect the bearing from dust or any possible contamination.Commonly used for Electric Motors, Wheel Bearings, Agricultural, Conveying and much more. This good precision 6202RZ bearing provide high speed and the convenience of removal shields for cleaning and relubrication. This is the perfect bearing for all your roller-skating and skateboard applications. Bearing has Rubber Seals to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease. Product Name : Ball Bearing; Model No. : 6003Z Ball Bearing Inside Diameter : 17mm & 15mm Outside Diameter : 35mm Width : 10mm Ball Bearing Net Weight : 39g Deep Groove Ball Bearing Weight:44g Thickness:11mm / 0.4 inch Material : Metal Colour:yellow + black + silver Package Contents: 1 x Deep Groove Ball Bearing 1 x Ball Bearing Only the above package content, other products are not included. 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.