The McKissick Forged Steel Sheave is a wire rope sheave engineered for crane, hoist, and rigging block applications where reliable rope guidance, accurate load transfer, and durable construction are required in light to medium duty lifting operations. Featuring a 5 in outside diameter and a plain bore bearing configuration, this sheave is designed to accept wire rope up to 5/16 in diameter, making it well-suited for light capacity crane, hoist, and rigging systems in construction, industrial, marine, and general material handling environments. Forged steel construction delivers a refined grain structure and significantly higher tensile and impact strength compared to cast alternatives, providing reliable performance and longevity in demanding rigging applications.
The forging process produces a sheave with enhanced structural integrity and fatigue resistance, critical characteristics for wire rope sheaves subjected to repeated dynamic loading in active crane and hoist systems. The 5 in outside diameter provides a favorable rope-to-sheave diameter ratio that reduces bending stress on the wire rope during operation, contributing to extended rope service life and reduced maintenance intervals. The machined rope groove is precisely profiled to match the wire rope diameter, ensuring even load distribution across the rope cross-section and minimizing groove and rope wear throughout the service life of the assembly.
The plain bore bearing configuration provides a durable and cost-effective solution for intermittent-duty or lower-speed applications where anti-friction bearings are not required. This sheave is designed for use as a replacement or component part within McKissick and compatible wire rope block assemblies. Proper shaft fit, lubrication, and alignment are essential to achieving rated performance and maximizing service life in lifting and rigging operations.
Material: Forged Steel
Compatible With: Wire Rope up to 5/16 in Diameter Standard Bore Shaft and Pin Arrangements McKissick Wire Rope Block Assemblies Compatible Replacement Block Assemblies
Uses: Light to Medium Duty Crane and Hoist Block Assemblies Wire Rope Guidance and Load Transfer Construction and Industrial Rigging Marine and Offshore Block Systems General Material Handling Applications Replacement Sheave for Block Assemblies
Key Features: 5 in Sheave Outside Diameter 5/16 in Maximum Wire Rope Capacity Plain Bore Bearing Configuration Forged Steel Construction for Superior Strength and Fatigue Resistance Favorable Rope-to-Sheave Diameter Ratio Reduces Wire Rope Bending Stress Machined Rope Groove Profiled for Even Load Distribution McKissick Quality Construction
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