The FARR Coupling is applied when a rigid connection is required between the reduced pace shaft of the gearbox and the head shaft of a conveyor, bucket elevator, mixer or any over-hung or suspended load. When sized correctly, the FARR Coupling will carry the applica-tion torque, bodyweight of gearbox, motor and swing plate. Inside the situation of a mixer, it will eventually carry the fat from the shaft and impeller, thrust forces and resulting bending moments.
Elements 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 incorporated for security. The 2 hubs are assembled with Grade 8 bolts and Grade À Prevailing Torque nuts. Common coupling sizes have a nominal torque vary from 11,300 to five,736,000 in-lbs. More substantial sizes can be found determined by the application.
Features
Heat Taken care of 4140 alloy steel
Male and Female pilots
Elevated Torque Capacity
Grade eight Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length by bore
Keeper Plate design
FARR Coupling Assortment Guidebook
A. Obtain The following Info:
Application
Horsepower & RPM
Gearbox (Reducer) Ratio
Output Velocity
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 Style and design Torque by applying 2.0 Service Factor to application torque.
D.Select coupling with a torque capability equal to or greater than the Style Torque from the Performance Data table.
E.Verify that the Bore capability from the coupling will meet the application shaft requirements.
F.The Male pilot hub to always be utilised to the Reducer (Gearbox or Driver) shaft as well as the Female pilot hub to always be applied about the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling variety.
