This pack contains 10 pieces of F689zz shielded model flange bearings with dimensions 9 x 17 x 5 mm. The F689 bearing family and the flange design provide reliable support for small shafts in compact assemblies. The zz suffix denotes double shields that protect the bearing interior from dust and contaminants and help retain lubrication for longer service life. Key features Shielded double outer shields (zz) for protection against dust and moisture Flange mounting for easy, accurate alignment and secure installation in tight spaces Bore size 9 mm to fit a 9 mm shaft Outer diameter 17 mm and width 5 mm for a compact footprint Suitable for low to moderate load applications common in hobby projects and small machinery Pack includes 10 bearings Benefits Extended bearing life in dirty or dusty environments due to shielded design Simple mounting and reduced misalignment with flange integration Consistent rotation and smooth operation from a standard deep groove bearing design Readytouse quantity for multiapplication projects or replacements Applications Robotics and hobby projects that use small 9 mm shafts and require reliable axial alignment 3D printers, small CNC machines, or other compact equipment needing supported drive shafts or idler systems Miniature conveyor rollers, spool holders, or other compact mechanical assemblies that benefit from a shielded, flangemounted bearing Compatibility and specifications at a glance Model: F689zz shielded flange bearing Size (bore x outer x width): 9 x 17 x 5 mm Shielding: zz double shields Mounting: flange bearing design for straightforward installation Quantity: 10 pieces This description reflects the product's brand, specifications, model, and features as presented, and provides clear, practical guidance for selection and use.