The inner diameter is 12 mm, outer diameter is 30 mm and the width is 8mm, this is a popular size that could be used in many applications, Bearings are made of Chrome Steel and can rotate up to 15000 rpm, each bearing has 2 Rubber Seals to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease,

• Item: Radial Deep Groove Ball Bearings
• Size: 12mm x 30mm x 8mm (16101-2RS1)
• Dimensions: 12*30*8 mm/Metric
• ID (inner diameter)/Bore=12mm
• OD (outer diameter)=30mm
• Width/Height/thickness=8mm
• Equal: 16101-2RS1 & 16101-2RZ
• Material: Chrome Steel
• Type: Deep groove ball bearings
• Closures: Rubber Seals
• Lubrication: Self Lubricated (Grease)
• Quantity: One
• MARKING: 16101RS