ABCO provides TRUE FORGED sheaves. They are available in sizes that range from 12" to 120" and grooved to customer specification. The bore can be made to accommodate tapered roller bearings, bronze bushings, snap rings, or to customer specification. We also manufacture sheaves to industry standards such as API 8A or 8C, or DIN, and third party certifications such as ABS or DNV is available upon request. Our sheaves feature normalized forged rings to eliminate cracks, full penetrations welds between the web and hub and each sheave is thermally stress relieved. Also all sheave are flame hardened to a minimum of 35 RC and each bore is concentric to the groove to ensure correct operation.