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Delrin(tm) sheaves on plain bearings ensure smooth operation and high safe working load
First the Boomkicker must provide enough support for the boom and mainsail if the mainsail is stored folded or flaked on the boom and second
The range matches drum diameters to load ratings providing the optimum balance between speed and ease of furling
Keep sheets
Schaefer Single Universal Head Ball Bearing Block Stand-Up Bases & Stand-Up Springs Delrin(tm) sheaves on plain bearingsProduct Description Schaefer Single Universal Head Ball Bearing Block Single block with aluminum cheeks and ball bearing sheave. Delrin(tm) ball bearing sheave provides a low friction yet high safe working load block. Swivel head may be locked in place to eliminate twists. Specifications: Sheave Dia.: 2 3 8 in. (60 mm) Sheave Width: 3 4 in. (19 mm) Pin Dia.: 1 4 in. (6 mm) Thickness: 1 3 32 in. (28 mm) Length: 5 1 32 in. (128 mm) Width: 2 1 2 n. (64
