High Quality 10 Ball Bearings ( 6903ZZ ), the inner diameter is 17, outer diameter is 30 and the width is 7, this is a popular size that could be used in many applications, Bearings are made of Chrome Steel and can rotate up to 23000 rpm, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease.

• Item: Double Shielded Ball Bearings
• Size: 17mm x 30mm x 7mm
• Type: Deep groove ball bearings
• Closures: Metal Shields
• Lubrication: Self Lubricated (Grease)
• Quantity: 10 Bearings
• Packing: 10 bearings in 1 plastic tube
• Equivalents: 61903-2Z1 and 61903Z1 Bearings