Selden Ball Bearing Blocks

Ball bearing blocks are used where the loads are more moderate and dynamic. The ball bearings provide for good sheave rotation with the lowest possible friction. Available in 20, 30 and 40 mm sheave diameters. Seldén ball bearing blocks can be used for medium and dynamic loads in: Control line applications, Mainsail sheets for dinghies and keelboats, Spinnaker sheets, barber haulers, Genoa sheets, Dinghy applications and Vang applications.