McKissick Ductile Iron Sheave - 3/8 in x 6-3/4 in - Self-Lubricating Bronze Bushing

Product Description

The McKissick Ductile Iron Sheave with self-lubricating bronze bushing bearing is a heavy-duty wire rope sheave engineered for demanding crane, hoist, and rigging block applications where superior strength, toughness, and reduced maintenance requirements are essential. Featuring a 6-3/4 in outside diameter and a self-lubricating bronze bushing 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 lifting operations in construction, industrial, marine, and oilfield environments. Ductile iron construction provides a superior combination of strength, toughness, and impact resistance compared to standard cast iron, allowing the sheave to absorb shock loads without fracturing in dynamic lifting and rigging systems.

The self-lubricating bronze bushing bearing is engineered to release lubricant continuously during operation, significantly reducing the need for external lubrication maintenance while providing consistent bearing performance over extended service intervals. This bearing type is particularly well-suited for applications in remote, elevated, or difficult-to-access rigging systems where routine lubrication is impractical, as well as marine and offshore environments where corrosion resistance and low-maintenance operation are priorities. The 6-3/4 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. This sheave is designed for use as a replacement or component part within McKissick and compatible wire rope block assemblies. Proper shaft fit and alignment are essential to achieving rated performance and maximizing service life in demanding industrial lifting and rigging operations.

Material: Ductile Iron Self-Lubricating Bronze Bushing

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: Heavy-Duty Crane and Hoist Block Assemblies Wire Rope Guidance and Load Transfer Construction and Industrial Rigging Marine and Offshore Block Systems Oilfield and Heavy Industry Lifting Applications Remote and Difficult-to-Access Rigging Systems Replacement Sheave for Block Assemblies

Key Features: 6-3/4 in Sheave Outside Diameter 3/8 in Maximum Wire Rope Capacity Self-Lubricating Bronze Bushing Bearing for Reduced Maintenance and Extended Service Life Ductile Iron Construction for Superior Strength and Impact Resistance Favorable Rope-to-Sheave Diameter Ratio Reduces Wire Rope Bending Stress Machined Rope Groove Profiled for Even Load Distribution Suitable for Marine, Offshore, and Remote Rigging Applications McKissick Quality Construction