SG15U U-Groove Sealed Track Ball Bearing 5x17x8mm Linear Motion Systems - 2 1/2 inch (2.5") 314KDD bearing is closed with

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SG15U U-Groove Sealed Track Ball Bearing 5x17x8mm Linear Motion Systems - 2 1/2 inch (2.5") 314KDD bearing is closed withSG15U U Groove Sealed Ball Bearing 5mm x 17mm x 8mm Pre Lubed, Chrome Steel The SG15U is a compact U groove ball bearing designed for guide rails, track rollers, and linear motion applications. Made from durable chrome steel and sealed on both sides, it offers smooth operation and protection from debris in compact setups. Inner Diameter: 5mm Outer Diameter: 17mm Width: 8mm Groove Width (W): 9. 75mm Flange Diameter (d2): 8. 6mm Groove Depth (H): 1mm