[Size] - MF148ZZ ABEC1 bearing (I.D.=8mm, O.D.=14mm, Thickness=4mm, Flange Dia:15.6mm).[Durable] - Chrome Steel (GCr15) races offer high hardness and great wear resistance, thus extend bearings' service life.[Load & Speed] - Dynamic load rating of 695N and static load rating of 309N. The limiting speed is 38000 RPM under grease lubricating.[Easy to Maintain] - Shields on both sides to keep lubricant in. Z1 noise level for most general use.[Application] - Commonly used for glider/rocker arm, wheel of the cart, lawnmower, printers, fax machines, power tools, and other homemade projects.
eBay