McKissick Bar Steel Sheave - 3/8 in x 7 in - Plain Bore

Product Description

The McKissick Bar Steel Sheave is a wire rope sheave engineered for crane, hoist, and rigging block applications where reliable rope guidance, consistent load transfer, and cost-effective construction are required in light to medium duty lifting operations. Featuring a 7 in outside diameter and a plain bore bearing configuration, this sheave is designed to accept wire rope up to 3/8 in diameter, making it well-suited for light to medium capacity crane, hoist, and rigging systems in construction, industrial, marine, and general material handling environments. Bar steel construction is machined from solid bar stock, providing consistent material properties, good dimensional accuracy, and reliable performance in standard rigging block applications.

Bar steel construction offers a practical and economical alternative to forged or cast sheave materials for applications where the extreme impact resistance of forged steel or ductile iron is not required, while still delivering the strength and machinability needed for accurate rope groove profiles and reliable service in active lifting systems. The 7 in outside diameter provides a favorable rope-to-sheave diameter ratio for a 3/8 in wire rope, reducing bending stress on the rope during operation and 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: Bar Steel

Compatible With: Wire Rope up to 3/8 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: 7 in Sheave Outside Diameter 3/8 in Maximum Wire Rope Capacity Plain Bore Bearing Configuration Bar Steel Construction for Consistent Material Properties and Dimensional Accuracy Favorable Rope-to-Sheave Diameter Ratio Reduces Wire Rope Bending Stress Machined Rope Groove Profiled for Even Load Distribution McKissick Quality Construction