SR3-2RS ABEC 7 SI3N4 DRY Stainless Steel Ceramic Ball Bearing, Made of stainless steel and rubber sealed on both sides. Bearing balls are Si3N4 ceramic. Inner daimeter is 3/16″ inch, outer diameter is 1/2″ and width is 0.196″ inch.

• SR3-2RS ABEC 7 SI3N4 DRY Ball Bearing
• Deep Groove Ball Bearing
• Material: Stainless Steel
• Ball Material: Ceramic
• Lubrication: Dry (None)
• Closures: Two Rubber Seals
• Dimensions: 3/16″ x 1/2″ x 0.196″ English Size
• ID (inner diameter)/Bore: 3/16″ inch
• OD (outer diameter): 1/2″ inch
• Width: 0.196″ inch
• Size: 3/16″ x 1/2″ x .196″
• Quantity: 1 Bearing