| | | • The type and size of boat rope or wire to be used. • The sheave material - depending on the use of either rope or wire. • The bearing type - depending on the operational loads being taken. • The body construction - often determining the ultimate load carrying capacity and weight of the block. • The ultimate breaking load. • The block weight. | | |
| | | Rope Sizes & Types: Up to 8mm; standard 3 strand or plaited nylon, polyester and polypropylene ropes. Sheave: Tough "Arnite" plastic Bearing: Plain - low friction plastic onto s/steel. Body construction: Electro-polished 316 s/s with hollow rivet. Breaking Loads: 500kg (00-07) to 1,250kg (00-31) Weights: 18g(00-07) to 49g (00-31) Typical uses: Control lines, halyards, outhauls, kicking straps, furling lines, cunninghams traveller control lines, leech lines, dinghy spinnaker sheets, guys and halyards. | | |