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FARR Coupling – V Pulley

The FARR Coupling is employed when a rigid connection is required between the minimal speed shaft of the gearbox plus the head shaft of a conveyor, bucket elevator, mixer or any over-hung or suspended load. When sized properly, the FARR Coupling will carry the applica-tion torque, bodyweight of gearbox, motor and swing plate. Inside the case of a mixer, it is going to carry the excess weight from the shaft and impeller, thrust forces and resulting bending moments.
Components of a FARR Coupling include male and female piloted hubs created from 4140 alloy steel. The hubs are extended to assure 80% hub to shaft get hold of. Keeper plates are integrated for security. The 2 hubs are assembled with Grade eight bolts and Grade À Prevailing Torque nuts. Regular coupling sizes possess a nominal torque range from 11,300 to 5,736,000 in-lbs. Greater sizes are available based upon the application.
Characteristics
Heat Taken care of 4140 alloy steel
Male and Female pilots
Greater Torque Capability
Grade 8 Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length by means of bore
Keeper Plate style
FARR Coupling Assortment Guidebook
A. Obtain The following Details:
Application
Horsepower & RPM
Gearbox (Reducer) Ratio
Output Speed
All Shaft Sizes
Overhang Load
Lever Arm
(Distance from end of Gearbox output Shaft to Center-Line of Gearbox or Center Line of Gravity)
B.Calculate Application Torque:
T (in-lb) = ¡ê¡§HP x 63025¡ê?/RPM
C.Calculate Layout Torque by applying 2.0 Service Factor to application torque.
D.Select coupling with a torque capability equal to or greater than the Design and style Torque from the Performance Data table.
E.Verify that the Bore capability of the coupling will meet the application shaft requirements.
F.The Male pilot hub to always be utilized on the Reducer (Gearbox or Driver) shaft along with the Female pilot hub to always be utilised about the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling variety.