McKissick J-566 Western Cargo Hoisting Block - Wire Rope - 3/4 in - 10 Ton

Product Description

The McKissick J-566 Western Cargo Hoisting Block is a heavy-duty wire rope block engineered for high-capacity cargo hoisting, marine lifting, and industrial rigging operations where a larger sheave diameter is required for 3/4 in wire rope service. Rated at 10 Ton with a 16 in sheave outside diameter and compatibility with wire rope up to 3/4 in diameter, the J-566 is distinguished from the E-566 by its larger sheave platform, which provides an increased D/d ratio for 3/4 in wire rope and is suited to applications where wire rope fatigue life, smoother line travel, or specific rigging geometry requirements call for a larger sheave than the 14 in E-566 offers. The Western cargo hoisting block configuration is a proven design used across marine, offshore, and industrial environments for cargo handling, deck operations, and heavy rigging assemblies.

The tapered roller bearing delivers the mechanical performance required for sustained high-capacity hoisting service. Designed to carry both radial and axial thrust loads simultaneously, the tapered roller bearing ensures consistent sheave rotation under heavy tension, minimizes friction during wire rope travel, and maintains sheave alignment under the dynamic and eccentric loading conditions common in cargo hoisting applications. This bearing type is the preferred choice for large-sheave, high-capacity wire rope blocks where load distribution, mechanical efficiency, and long service life under demanding conditions are essential.

The J-566 sits within McKissick's Western cargo hoisting block lineup alongside the E-566 14 in and QK-566 16 in 1 in wire rope models, offering operators the choice of a 16 in sheave platform optimized for 3/4 in wire rope where the larger sheave geometry is operationally advantageous. The block is suited for use in single or multiple part line rigging configurations depending on application requirements, vessel or facility rigging hardware, and load handling needs.

Material: Steel block body Steel sheave Tapered roller bearing

Compatible With: Wire rope up to 3/4 in diameter Standard marine and industrial rigging hardware rated to 10 Ton or greater Cargo hoisting and deck rigging assemblies on vessels and shore-based lifting systems

Uses: Cargo hoisting and handling on marine vessels and docks where larger sheave diameter is required Heavy industrial lifting and rigging operations Offshore and coastal deck operations Construction site hoisting applications requiring 10 Ton block capacity with 16 in sheave Wire rope rigging systems requiring a large-sheave platform for 3/4 in wire rope

Key Features: 10 Ton rated capacity 16 in sheave outside diameter 3/4 in maximum wire rope diameter Tapered roller bearing for combined radial and axial load handling Larger sheave platform than the E-566 for increased D/d ratio with 3/4 in wire rope High mechanical efficiency under heavy and dynamic loading McKissick J-566 series Western cargo hoisting block configuration Suitable for marine, offshore, and industrial rigging applications