b'High-Load SheavesHigh-load sheaves are offered as replacement parts or for use in special applications. Their bearing system combines sideload-carrying balls with a PTFE composite bushing to carry radial loads. While not as free-rolling as the standard Harken ball/roller bearing system, this compact bearing system is extremely durable and perfect for carrying high loads in a restricted diameter.Installation requires clamping or securing inner race.Custom sheaves available by request. View more options on harken.com.Use for:Masts C7842BoomsDeck organizersThrough-the-transom running backstays727 754 712 714 716 C4579 1734Sheave Center pin MaxMaximum Breaking PartWidth WeightLine Wire working load load*No. in mm in mm oz g in mm in mm in mm lb kg lb kg71241027/8221028411/1617.61/2125/16812000544332000145157145127125174817/822.285/8165/16815000680451000231337166152125236527/822.285/8163/81018000816551000231337272 1/4577/8221133/8101/2125/164950224599004491 48 7543767/82251421/212.71/2125/1670003175165007484 8173482031 3/8354613001 1/431.77/8221/212370001678310000045360 C45791521 1/432329031 31/6437.747/82241000186008200037200 6 C78423 1/2901 15/16502057811/16185/8161281158112562211622*Based on use of solid 304 stainless shafts.Narrow Halyard & Steering SheavesNarrow high-load sheaves in mastheads improve sail handling, speed sail changes, and allow the use of smaller, lighter halyard winches. Used in steering systems, these sheaves return feel to wheel-steered boats.Sheaves combine sideload-carrying balls with a PTFE composite bushing for radial loads. These durable sheaves are made of 6061-T6 aluminum and are well-suited for masthead and steering installations.Installation requires clamping or securing inner race.Use for:Masthead/halyard sheavesSteering systems691 692 693 694Sheave Center pin MaxMaximum Breaking PartWidth WeightLine Wire working load load*No. in mm in mm oz g in mm in mm in mm lb kg lb kg6913765/8164.51281/212.73/8103/1654000181416500748469241023/41982271/212.77/16125/1688250374216500748469351273/419123403/419.17/16125/168120005443371001682869461527/822195393/419.11/2123/8101600072583710016828*Based on use of solid 304 stainless shafts.77'