The McKissick Stepped hub eliminates stress failure in the weld, common in normal hub designs. The hub is pressed into place with complete metal-to-metal contact. This helps ensure an accurate alignment to the hubs axis so there's no wobble or lopping of the rotating sheave.
McKissick Finished Bore Sheaves can be equipped with bushings or bearings at an optional charge. Roll Forged sheaves are available in sized up to 72" in diameter. 14" diameter sheaves and larger are Roll Forged with Flame hardened grooves to minimum Rockwell 35C.
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