This Crosby® McKissick 8" sheave block is a 419 type snatch block built with a forged steel swivel shackle and roller bearings, sized for 5/8" to 3/4" wire rope. The roller bearings keep the sheave turning smoothly under repeated cycling, outperforming a bushed block in frequent-use applications. The shackle assembly interchanges across the 4-1/2" to 14" McKissick size range, and the block is engineered to meet or exceed ASME B30.26 requirements.

Key Features

• 8" sheave sized for 5/8" to 3/4" wire rope
• Roller bearings for smoother rotation under repeated use, a good fit when the job calls for wire rope pulleys with bearings instead of plain bushings
• Forged steel swivel shackle
• Shackle assembly interchanges across the 4-1/2" to 14" McKissick size range
• Engineered to meet or exceed ASME B30.26 requirements

Applications

• Frequent-cycle rigging where a single sheave block needs to hold up over time
• Crane and hoist work requiring a shackle-end wire rope sheave
• Job sites running 5/8" or 3/4" wire rope that need a dependable snatch block
• Rigging crews standardizing on interchangeable McKissick shackle assemblies