| Sheave
and Hook Configurator |
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Stepped
hub design
proves better.
The McKissick hub is
stepped to eliminate stress failure in the weld, common in traditional 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
theres no wobble or lopping of the rotating sheave. The precision aligned hub/sheave
wheel combination adds to the bearing life and keeps the sheave on the job longer.

Closed die upset and roll
forged not split.
Upsetting and roll
forging forms the groove and flange walls in multiple steps, eliminating the need
to split and weaken the groove. This exclusive forging process adds extra strength to the
critical groove section. You can count on a McKissick sheave to give maximum life
performance, because its forged to distribute the wire rope forces evenly over an
accurately formed load surface. Plus, uniformity of the roll forged groove adds longer
wire rope life. |
Full range of standard
sheave sizes.
McKissick roll
forged sheaves are available in a full range of sizes from 12 inches to 72 inches, and
bearing styles and prices that best fit your application. Crosby also manufactures custom
McKissick sheaves and can make minor modifications to standard sheaves as needed for
special applications.

Solid steel
no castings.
Every McKissick
sheave starts as a single piece of solid carbon steel plate. Its flame - cut from
closely checked stock, so theres no inherent web/rim flaw as you find in cast
sheaves.
Theres
better balance and better distribution of forces with a McKissick roll forged sheave too.
Casting can result in groove wall variations - either too thick or too thin - causing
uneven stresses and early failure. |
Flame hardened groove.
Crosbys
hardening technique is a science. It provides a precise maximum hardness for wear-
resistance across the wire rope contact area. The McKissick sheave groove is flame
hardened to a minimum 35 Rockwell C for a 140°, contact area with the wire rope. The
solid steel plate provides the ideal surface for flame hardening and a closer tolerance
fit to the wire rope to reduce fatigue and wear.

Bearing
selection to match
your job requirement.
The McKissick Roll
Forged sheave is available in the following configurations:
Plain bore
Bronze bushed
Roller bearing
Tapered roller
bearing
Lubrication thru
hub
Key ways
Set screws
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