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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:

  • Wireline Size
  • Shaft Diameter
  • Weight Requirements
  • Hub Diameter
  • Bore Finished
  • Nominal Outside Diameter
  • Hub Width
  • Rim Width
  • Nominal Tread Diameter
  • Other Special Requirements




ROLL FORGEDTM 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 diameters of 356mm 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 your specific application.
  • For more information ask for our special brochure describing the complete roll forging process.

McKISSICK® ROLL FORGEDTM SHEAVE CONFIGURATOR


The McKissick® Roll ForgedTM Sheave CONFIGURATOR system has been developed to simplify the selection and ordering of McKissick® Roll ForgedTM sheaves. Although McKissick® can custom manufacture any Roll-ForgedTM sheave to your exact requirement, we have developed a system to allow quick and easy selection of the proper standard McKissick® Roll ForgedTM sheave required to meet your applications. Using standard sheaves will reduce the lead time in getting the sheave to you, thus saving time and money.
For more information, see page 242, or contact your local authorized Crosby distributor.

SHEAVE BEARING APPLICATION INFORMATION


Bronze Bushing
-
Slow line speed, moderate load and moderate use,
Maximum Bearing Pressure (BP): 31N/mm2
Maximum Velocity at Bearing (BV): 366m/min
Maximum Pressure Velocity Factor (PV): 114




Example:
Using a 356mm sheave (917191) with a 20,000 N line pull and
a 80 degree angle between lines, determine maximum
allowable line speed.

BP = 20,000 N x 1.53 ÷ 38 x 41 = 19,64 N/mm2
(Line Pull) (Angle Factor) (Hub Width)
(Shaft Size)
BV = 114 ÷ 19,64 = 5,8 m/min
(PV Factor) (BP)



Plain Bore -
Very slow line speed, very infrequent use, low load.
Roller Bearing -
Faster line speeds, more frequent use, greater load