Single Stainless Steel Foot Block 37-5537 55 Single Stainless Steel Foot Block. Computer machined base features aluminum sheaves with our nomex(tm) Teflon(tm) bearing and Delrin(tm) ball bearings for a low friction high strength block. Stainless Steel Top plate is easily removed for installation. Wide computer machined aluminum base spreads loads over a wide area. Boat Size Up To LOA 45', Disp. 30,000 lbs., Sail Area 900 sq. ft. (13. 6 m, 13,636 kg, 83. 6 m2), Sheave Dia. 4" (102 mm), Max
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