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Blocks Selection Advice Ronstan Sailboat Hardware World

Block cheeks and sheaves are precision machined from high strength aluminium alloy, then anodised for durability and corrosion resistance. The soft attachment through the hub provides a protective buffer between the block and boat surfaces. Retaining guides in soft elastomer ensure that the block remains aligned within the soft shackle. Pulley Blocks and Sheaves - Lifting Hardware - Grainger Sheaves and pulley blocks are devices that aid the lifting or pulling of loads. They mount to a surface or suspend from equipment and have a grooved wheel (sheave) for guiding a wire rope or aircraft cable that's attached to the load. Pulley sheaves are replacement wheels for pulley block

Replacement Sheaves Bushings Bearings - Pulley Blocks

Block Divisions sheaves are machined from cold rolled bar stock and then bright zinc electroplated for corrosion resistance. Block Division offers a variety of steel/bronze bushings that are oil impregnated to accommodate your ID (shaft) sizes. We can press in place at no charge or ship loose. SECTION 5 Block s/Sheave s/Swivels - Hanes Supply Inc.Tackle Block - An assembly consisting of a sheave(s), side plates, and generally an end fit-ting (hook, shackle, etc.) that is used for lifting, lowering, or applying tension. Fitting Maintenance Fittings, including hooks, shackles, links, etc., m ay become worn and disfigured with use, Sheave block weighing assembly - Quest CorporationSheave block weighing assembly . United States Patent 4413691 . Abstract:A sheave basket weighing system is disclosed for use in a material handling apparatus. The weighing system comprises a sheave basket with three bending beam load cells fixed on the sheave basket to provide a three-point support system. One of the load cells is preferably


Recessed sheave prevents wire rope from binding between sheave and block side; Half side for light weight or full sided block maximize sheave protection; Versatile draw pin design allows for rapid reeving and exchange of attaching style; Rugged cast alloy steel sides for demanding environments; ASTM B30.26 Compliant Snatch Blocks, Sheave Blocks and Crane Pulley Blocks In this category we offer mainly snatch block and crane blocks which are both sheave blocks. Snatch blocks used to deflect a wire rope and can be supplied as Tail Board, with top hook suspension or as shackle suspended. They are often used suspended from a hook for lifting equipment application s though just as often used for pulling applications. TACKLE BLOCK General Cautions or Warnings & SHEAVE sheave assembly material for the intended application may cause premature sheave, bearing or Wireline wear and ultimate failure - the result could be serious injury or death. A tackle block system should be rigged by a qualified person as defined by ANSI/ASME B30.26. Instruct workers to keep hands and body away from

Tackle Block and Sheave Assembly Definitions Warning,

Generally eed for blocks as a ratio of 4 to 1. TACKLE BLOCK An assembly consisting of a sheave(s), side plates, and generally an end fitting (hook, shackle, etc.) that is used for lifting, lowering, or applying tension. SHEAVE / SHEAVE BEARING ASSEMBLY Purchased by O.E.M. or end user to be used in their block or lifting system design. Timken Sheave Pac Bearing Assembly Installation ManualThe overall width of the Sheave Pac assembly is wider than the sheave inner hub; therefore, the sheave must be securely supported while allowing the Sheave Pac assembly to be installed correctly without bottoming out on the press table/support. Options for this include, but are not limited to, supporting the sheave on adequate blocks or a support ring or utilizing an opening in the press table/ mast blocks-antaldeck blocks, mast blocks, through deck blocks. horizontal foot blocks, vertical fix, organizers and deflection pulleys. up to 9000 kg. Hard black anodized aluminium frame with insulating washers for corrosion protection. Resin sheaves (aluminium sheaves for 100, 120 and 140 mm only) with composite fibre main bearing (not on size 40) and

Sheave Blocks & Sheaves - SuperLift Industrial Lifting

Sheave Blocks are common lifting mechanisms used for rigging. Using a sheave / pulley block in a block and tackle application reduces the amount of force required to lift an abnormally heavy object. A pulley system is used in conjunction with wire rope or other types of rigging ropes, by looping the rope through the pulley (around the sheave) several times before hooking to the object.