Select Page

The FARR Coupling is used when a rigid connection is required in between the low pace shaft of a gearbox plus the head shaft of the conveyor, bucket elevator, mixer or any over-hung or suspended load. When sized correctly, the FARR Coupling will carry the applica-tion torque, weight of gearbox, motor and swing plate. Inside the case of a mixer, it’s going to carry the bodyweight from the shaft and impeller, thrust forces and resulting bending moments.
Components of a FARR Coupling consist of 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 incorporated for safety. The 2 hubs are assembled with Grade 8 bolts and Grade À Prevailing Torque nuts. Conventional coupling sizes have a nominal torque vary from 11,300 to 5,736,000 in-lbs. Larger sizes are available according to the application.
Options
Heat Handled 4140 alloy steel
Male and Female pilots
Enhanced Torque Capability
Grade eight Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length as a result of bore
Keeper Plate style
FARR Coupling Choice Guidebook
A. Obtain The next Information and facts:
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 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 and design Torque from the Performance Data table.
E.Verify that the Bore capability with the coupling will meet the application shaft requirements.
F.The Male pilot hub to always be used around the Reducer (Gearbox or Driver) shaft as well as 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.