SR188ZZ/IW5.557 Stainless Steel Ball Bearing, this is a popular size that could be used in many application that uses this size 1/4" x 1/2" x 5.557mm. Bearing is made of Stainless Steel, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearing is pre-lubricated with grease.

• Item: SR188ZZ/IW5.557 Ball Bearing
• Type: Deep Groove Ball Bearing
• Material: Stainless Steel
• Closures: 2 Metal Shields
• Lubrication: Self Lubricated (Grease)
• Dimensions: 1/4" x 1/2" x 5.557mm
• ID (inner diameter)/Bore: 1/4" inch
• OD (outer diameter): 1/2" inch
• Width/Height/thickness: 5.557mm
• Size: 1/4" x 1/2" x 5.557mm
• Quantity: One Bearing