The McKissick Common Bore Sheave is a heavy-duty wire rope sheave designed for use in crane, hoist, and rigging block assemblies where reliable rope guidance and load transfer are essential. Featuring a 12 in outside diameter and a plain bore bearing configuration, this sheave is engineered to accept wire rope up to 7/8 in diameter, making it well-suited for medium to heavy lifting applications in construction, industrial, marine, and oilfield environments. The common bore design allows for straightforward integration into existing block and sheave assemblies using standard shaft and pin arrangements.
Manufactured from ductile iron, this sheave offers a superior combination of strength, toughness, and resistance to impact loading compared to standard cast iron alternatives. Ductile iron construction provides the sheave with the ability to absorb shock loads without fracturing, which is a critical performance characteristic in dynamic lifting and rigging systems where load conditions can change rapidly. The machined rope groove is profiled to match the wire rope diameter, promoting even load distribution across the rope cross-section and reducing wear on both the rope and the sheave groove over extended service life.
The plain bore bearing style provides a cost-effective and durable solution for lower-speed or intermittent-duty applications where anti-friction bearings are not required. This sheave is designed to be used 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 demanding lifting and rigging operations.
Material: Ductile Iron
Compatible With: Wire Rope up to 7/8 in Diameter Standard Bore Shaft and Pin Arrangements McKissick Wire Rope Block Assemblies Compatible Replacement Block Assemblies
Uses: 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 Replacement Sheave for Block Assemblies
Key Features: 12 in Sheave Outside Diameter 7/8 in Maximum Wire Rope Capacity Plain Bore Bearing Configuration Ductile Iron Construction for Superior Impact Resistance Common Bore Design for Standard Shaft and Pin Integration Machined Rope Groove Profiled for Even Load Distribution McKissick Quality Construction
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