The FARR Coupling is utilised when a rigid connection is required in between the minimal speed shaft of the gearbox and also the head shaft of the conveyor, bucket elevator, mixer or any over-hung or suspended load. When sized thoroughly, the FARR Coupling will carry the applica-tion torque, excess weight of gearbox, motor and swing plate. Within the situation of the mixer, it can carry the fat with the shaft and impeller, thrust forces and resulting bending moments.
Parts of the 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 integrated for safety. The 2 hubs are assembled with Grade eight bolts and Grade À Prevailing Torque nuts. Typical coupling sizes possess a nominal torque range from 11,300 to 5,736,000 in-lbs. More substantial sizes can be found determined by the application.
Features
Heat Handled 4140 alloy steel
Male and Female pilots
Enhanced Torque Capability
Grade 8 Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length by way of bore
Keeper Plate style and design
FARR Coupling Variety Guide
A. Obtain The next Info:
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 Layout Torque from the Performance Data table.
E.Verify that the Bore capacity on 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 applied on the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling assortment.