Ordering Information

McKissick sheaves come in a variety of sizes to suit your specific applications. Check the tables for the size, bearing style and price that best fits your application. For applications that require unique specifications Crosby can make minor modifications to many of the sheaves listed at a reasonable charge. We can also custom design and manufacture sheaves to your exact requirements. Contact Crosby Sales to order McKissick sheaves and include the stock number and quantity. For special requirements or custom designed sheaves, furnish the following important information:

ROLL FORGED SHEAVE FEATURES

• Unique upset roll forging process provides a thicker groove section for extra strength.
• Stepped Hubs are precisely centered and mechanically locked in place.
• Wireline grooves on sheave diameter of 14" and larger are flamed hardened for extra wear resistance.
• All sheaves have solid steel webs with holes for easy handling.
• Sheave weights can be made heavier or lighter than shown to fit yur specific application.
• For more information ask for our special brochure describing the complete roll forging process.

SHEAVE BEARING APPLICATION INFORMATION

BRONZE BUSHING -

Slow line speed, moderate load and moderate use,
Maximum Bearing Pressure (BP): 4500 PSI
Maximum Velocity at Bearing (BV): 1200 FPM
Maximum Pressure Velocity Factor (PV): 55000

Formula for BP = Line Pull x Angle Factor (See Page 175)

PLAIN BORE -
Very slow line speed, very infrequent use, load load

ROLLER BEARING -
Faster line speeds, more frequent use, greater load

Example:

Using a 14 in. sheave (917191) with a 4600 lb. line pull and a 80
degree angle between lines, determine maximum allowable line speed.