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:MastsBooms C7842Deck 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 kg71241027/8221028411/1617.61/2125/16812000544332000145155127125174817/822.285/8165/1681500068045100023133 714 716615225237/822.285/8163/8101800081655100023133 1652 7272 1/4577/82241133/81/2125/168495022459900 104491 7543767/82251421/212.71/2125/16870003175165007484173420345360 81 3/8354613001 1/431.77/8221/2123700016783100000 C457961521 1/432329031 31/6437.74410008200037200 7/82218600 C78423 1/2901 15/16502057811/16185/81658112562211622 12811 *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 kg6913765/8164.51281/212.73/8103/1651814165007484 4000 69241023/4192271/27/16125/16882503742165007484 812.7 693512719123403/419.17/16125/168120003710016828 3/45443 69461527/822195393/41/2123/8101600072583710016828 19.1 *Based on use of solid 304 stainless shafts.79'