FARR Coupling

The FARR Coupling is made use of when a rigid connection is needed amongst the very low velocity 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, weight of gearbox, motor and swing plate. From the situation of a mixer, it’s going to carry the weight with the shaft and impeller, thrust forces and resulting bending moments.
Parts of the FARR Coupling include male and female piloted hubs created from 4140 alloy steel. The hubs are extended to assure 80% hub to shaft make contact with. Keeper plates are integrated for safety. The two hubs are assembled with Grade eight bolts and Grade À Prevailing Torque nuts. Regular coupling sizes possess a nominal torque vary from eleven,300 to five,736,000 in-lbs. Larger sizes can be found based on the application.
Options
Heat Taken care of 4140 alloy steel
Male and Female pilots
Improved Torque Capability
Grade eight Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length by way of bore
Keeper Plate style and design
FARR Coupling Selection Guidebook
A. Obtain The next Data:
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 capacity equal to or greater than the Design and style Torque from the Performance Data table.
E.Verify that the Bore capability in the coupling will meet the application shaft requirements.
F.The Male pilot hub to always be applied within the Reducer (Gearbox or Driver) shaft as well as the Female pilot hub to always be made use of to the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling variety.

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