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and 57 mm blocks feature composite sheaves that spin freely on Delrin® ball bearings with curved bearing races
Produced for high-performance activity in wet conditions
252/small rachets
Bearings – Dynamic Blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail
our blocks are the strongest and best available on the market
Harken Small Boat Low Beam Track Captive Ball with 4" Hole Spacing 12 Badge_New and 57 mm blocks featureHarken Small Boat Low Beam Track Captive Ball with 4" Hole Spacing 12 Length (ft in) 12 Hole spacing (in) 4 Weight (oz) 56 Fasteners (in) 10 FH Low load endstop 173* High load endstop 263* Line shedding endstop 446* Splice link trim cap 2724 2722* Sold in pairs
US$ 649.50
US$ 305.00
US$ 180.30
