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20mm Ball Bearing sheave box
- Low maintenance
which can be removed to allow full 360 degree rotation
Sheave Ø 45 mm Max
Max Line Dia (mm) = 8
A2124 - Upstand Block (20mm) Kicking Strap Bracket 20mm Ball Bearing sheave boxLength (mm) = 31 Max Line Dia (mm) = 8 Shackle Pin (mm) = Breaking Load (kg) = 550 Max Dynamic Load (kg) = 115 Weight (g) = 20. 6 20mm Upstand Block Upstand Blocks, also known as foot blocks and lead blocks are a low profile solution for leading lines to cleats and jammers. Typically used at the base of a mast to lead the halyard from the mast base towards the cockpit or used to redirect mainsheet traveller lines up the side of a cockpit.
