High Quality 10 inch size Ball Bearings, the inner diameter is 1/4", outer diameter is 1/2" and the width is 3/16", this is a popular size that could be used in many applications, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease.

• Dimensions: 1/4inch x 1/2inchx 3/16inch English Size
• ID (inner diameter)/Bore= .250inch
• OD (outer diameter)= .500inch
• Width/Height/thickness= 0.187inch
• Item: Double Shielded Ball Bearings
• Size: 1/4" x 1/2" x 3/16"
• Size: 0.2500" x 0.5000" x 0.1875"
• Size: 6.350mm x 12.70mm x 4.7625mm
• Type: Deep groove ball bearings
• Shields: 2 Metal Shields
• Lubrication: Self Lubricated (Grease)
• Yoyo Bearing Fits: Hitman, NM, NM2, HG, X-con, Mini MotriX, Big Ben, Speeder, Dark Magic
• Quantity: 10 Pcs.