FARR Coupling

The FARR Coupling is utilised when a rigid connection is required involving the lower speed shaft of the gearbox plus 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. During the situation of a mixer, it will eventually carry the excess weight in the shaft and impeller, thrust forces and resulting bending moments.
Parts of the FARR Coupling include male and female piloted hubs produced from 4140 alloy steel. The hubs are extended to assure 80% hub to shaft speak to. Keeper plates are included for security. The 2 hubs are assembled with Grade eight bolts and Grade À Prevailing Torque nuts. Standard coupling sizes have a nominal torque vary from eleven,300 to 5,736,000 in-lbs. Bigger sizes are available according to the application.
Capabilities
Heat Treated 4140 alloy steel
Male and Female pilots
Improved Torque Capacity
Grade 8 Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length as a result of bore
Keeper Plate layout
FARR Coupling Choice Manual
A. Obtain The next Details:
Application
Horsepower & RPM
Gearbox (Reducer) Ratio
Output Pace
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 capacity equal to or greater than the Design Torque from the Performance Data table.
E.Verify that the Bore capacity from the coupling will meet the application shaft requirements.
F.The Male pilot hub to always be utilized around the Reducer (Gearbox or Driver) shaft plus the Female pilot hub to always be made use of over the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling variety.