R2-5-2RS Full Ceramic Ball Bearing, the inner diameter is 1/8", outer diameter is 5/16" and the width is 9/64", this is a popular size that could be used in many applications, Bearing is made of Ceramic.

• Item: R2-5-2RS Ball Bearing
• Type: Full Ceramic Ball Bearing
• Cage: PTFE
• Closures: PTFE Covers (white)
• Balls: ZrO2 Ceramic (zirconia)
• Inner/outer races: ZrO2 Ceramic
• Dimensions: 1/8" x 5/16" x 9/64" inch
• ID (inner diameter)/Bore: 1/8" inch
• OD (outer diameter): 5/16" inch
• Width/Height/thickness: 9/64" inch
• Size: 1/8" x 5/16" x 9/64"
• Quantity: One Bearing