The FARR Coupling is applied whenever a rigid connection is needed amongst the minimal pace shaft of a gearbox along with the head shaft of a conveyor, bucket elevator, mixer or any over-hung or suspended load. When sized adequately, the FARR Coupling will carry the applica-tion torque, bodyweight of gearbox, motor and swing plate. From the situation of a mixer, it can carry the excess weight of your shaft and impeller, thrust forces and resulting bending moments.
Parts of the FARR Coupling consist of male and female piloted hubs created 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 eight 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 are available determined by the application.
Functions
Heat Handled 4140 alloy steel
Male and Female pilots
Increased Torque Capability
Grade eight Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length by bore
Keeper Plate design
FARR Coupling Assortment Manual
A. Obtain The next Info:
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 Style Torque by applying 2.0 Service Factor to application torque.
D.Select coupling with a torque capability equal to or greater than the Layout 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 employed about the Reducer (Gearbox or Driver) shaft plus the Female pilot hub to always be utilised around the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling choice.