Check the listing for details. 3/8" OD X 1/4" ID X 1/8" Height 1/4" Inner Diameter Shank Bearing - Yonico 10102. Condition: New. Listed at 6.95 USD. 3/8" OD X 1/4" ID X 1/8" Height 1/4" Inner Diameter Shank Bearing - Yonico 10102 Click images below to enlarge Brand: Yonico Brand New Item#: 10102 Ships Fast This Router Bit Replacement Bearing features an outer diameter of 3/8", an inner diameter of 1/4" and a height of 1/8". Typically, bearings with a 1/4" inner diameter are used on the shanks of template or flush trim router bits with 1/4" diameter. This high quality ball bearing is well constructed and will endure many hours of use. This bearing can also be used as a standard utility bearing in whichever application that bearings are used. Number of Bits Shank Diameter Radius Degrees Cutting Diameter Cutting Depth Cutting Length Largest Diameter Overall Length Number of Flutes Bit Construction Design Application Coating Flute Angle Mortising Height Minimum Stock Thickness Maximum Stock Thickness Bearing Height Bearing Inner Diameter Bearing Outer Diameter Description From time to time, router bit bearings need to be replaced due to normal wear and tear. Because you never know when a bearing will suddenly seize or break, it's always a good idea to have a few extra bearings around. Bearings with an inner diameter of 1/4" or 1/2" are often used as shank bearings for template or flush trim router bits with shank diameters of those sizes. Bearings with a 5/16" inner diameter are used as part of a router bit assembly, common in tongue & groove and rail & stile bits, which are placed on a router bit arbor that has a 5/16" diameter. Bearings with a 3/16" inner diameter are used on the end of flush trim, edge forming or rabbet router bits with an end stub that has a 3/16" diameter. Our fully-enclosed bearings are smooth and well balanced and are made to withstand heavy use. We are the only authorized Yonico distributor on eBay. While you might see other "yellow" router bits being sold, the Yonico brand is manufactured in their american owned exclusive factory and does not produce products for any other brand. Free shipping to anywhere in the continental USA. Most orders go out the next business day. That means that your order will be at your door in no time. We ship to nearly every location on earth at very competitive rates and your package also gets to you quick. We have been a superior seller for over a decade. Our 40,000+ reviews give you the assurance that our quality and service is right at the top.