Workover Rig Tubing Blocks, Sheaves, and Crown Blocks by Crosby

RigPro carries quality blocks from Crosby including Oilfield Tubing Blocks, Crown Blocks and Sheaves for all

OilField Servicing Blocks

McKissick® Oilfield Tubing Blocks utilizing new Split Nut Retention System. Revolutionary new retention system eliminates conventional threaded nut and potential problems associated with thread corrosion. 70 Series has a spring loaded hook for heavy usage and is built to last long. 80 Series does not have a spring loaded hook in order to be suited for shallow depths.

  • E-Z Opening Guards

  • Convenient rod hook clevis

  • Double row, pre-adjusted tapered bearings with seals

  • McKissick Split-Nut® hook parts precision machined and individually fitted for maximum performance.

  • Lock Arms that have self-retaining bolts

Crown Blocks

  • McKissick Roll-Forged Sheaves

  • Double row pre-adjusted sealed tapered bearings mounted on a steel shaft

  • Pre-assembled units for rapid attachment to crown assembly for installation on derrick.

  • On multiple sheave assemblies, one sheave can be grooved for sand line on request

McKissick Roll-Forged Sheaves

McKissick Roll-Forged™ sheaves are available in sizes from 305mm to 1981mm. They are engineered to provide maximum hardness for wear-resistance and a closer fit for wire rope. With McKissick Roll-Forged Sheaves you can expect better balance and distribution of forces instead of uneven stress and failure that other sheaves face.

Sheaves Selection Guide: to accurately display the information in this guide, the original document is necessary

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