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Viadana Ball Bearing Blocks - Various Sizes & Styles (28mm, Double Upright Lead)
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About Viadana Ball Bearing Blocks - Various Sizes
Viadana's 28mm blocks run on twin races of Delrin ball bearings and are usually employed on small boats for travelers, boom vends, and barber haulers. All Viadana products are backed by a 2-year manufacturer warranty against factory defects. Sheave size - 28mm / 1 1/16" Max line size - 8mm / 5/16" Overall Height - 51mm / 2" Weight - 48 grams / 1.68 ounces Hole Diameter - 5mm / 3/16" Hole Spacing - 29mm / 1 9/64" Breaking Load - 1,050 kg / 2,314 lbs Max. Working Load - 300 kg / 661 lbs Viadana has been in business in Italy since 1961 researching, designing, manufacturing, and marketing nautical products for windsurfs, sailboats, keelboats, and cabin cruisers. Above all, Viadana takes care in using only the best available materials for nautical application, such as stainless steel AISI 316 and AISI 304, aluminum alloys 6063, 6005, 5154, composite fibre, and polymers such as carbon fibre and Delrin. All Viadana products are rigorously tested with laboratory procedures including mechanical tests of tensile strength and chemical salt-proof valuations.
