EP

January 28, 2021

The FARR Coupling is utilised whenever a rigid connection is required involving the minimal pace shaft of the gearbox as well as head shaft of the conveyor, bucket elevator, mixer or any over-hung or suspended load. When sized appropriately, the FARR Coupling will carry the applica-tion torque, excess weight of gearbox, motor and swing plate. In the situation of the mixer, it’ll carry the excess weight of the shaft and impeller, thrust forces and resulting bending moments.
Elements of a FARR Coupling consist of 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 2 hubs are assembled with Grade eight bolts and Grade À Prevailing Torque nuts. Standard coupling sizes possess a nominal torque vary from 11,300 to 5,736,000 in-lbs. Bigger sizes are available dependant upon the application.
Features
Heat Treated 4140 alloy steel
Male and Female pilots
Elevated Torque Capacity
Grade 8 Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length as a result of bore
Keeper Plate design
FARR Coupling Variety 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 Design and 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 of your coupling will meet the application shaft requirements.
F.The Male pilot hub to always be utilised within the Reducer (Gearbox or Driver) shaft along with the Female pilot hub to always be used within the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling choice.