The FARR Coupling is made use of whenever a rigid connection is needed amongst the very low velocity shaft of a gearbox and also the head shaft of a conveyor, bucket elevator, mixer or any over-hung or suspended load. When sized properly, the FARR Coupling will carry the applica-tion torque, bodyweight of gearbox, motor and swing plate. During the situation of a mixer, it will carry the weight on 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 contact. Keeper plates are included for safety. The 2 hubs are assembled with Grade 8 bolts and Grade À Prevailing Torque nuts. Typical coupling sizes possess a nominal torque range from eleven,300 to 5,736,000 in-lbs. More substantial sizes are available dependant upon the application.
Features
Heat Treated 4140 alloy steel
Male and Female pilots
Increased Torque Capacity
Grade 8 Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length as a result of bore
Keeper Plate style
FARR Coupling Variety Manual
A. Obtain The next Facts:
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 Style Torque by applying 2.0 Service Factor to application torque.
D.Select coupling with a torque capability equal to or greater than the Design and style 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 used about the Reducer (Gearbox or Driver) shaft plus the Female pilot hub to always be utilized to the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling assortment.