[Size] - FR166ZZ ABEC1 bearing (I.D.=3/16", O.D.=3/8", Thickness=1/8", Flange Dia:27/64").[Durable] - Chrome Steel (GCr15) races offer high hardness and great wear resistance, thus extend bearings' service life.[Load & Speed] - Dynamic load rating of 136N and static load rating of 49N. The limiting speed is 50000 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.
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