R4-2RS Full Ceramic Ball Bearing, the inner diameter is 1/4" inch, outer diameter is 5/8" inch and the width is 0.196" inch, Bearing is made of Ceramic.

• Item: R4-2RS Ball Bearing
• Type: Sealed Full Ceramic bearing
• Cage: PTFE
• Closures: PTFE Covers (white)
• Balls: ZrO2 Ceramic (zirconia)
• Inner/outer races: ZrO2 Ceramic
• Dimensions: 1/4" x 5/8" x 0.196" inch
• ID (inner diameter)/Bore: 1/4" inch
• OD (outer diameter): 5/8" inch
• Width/Height/thickness: 0.196" inch
• Size: 1/4" x 5/8" x 0.196" inch
• Quantity: One Bearing