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STEELFLEX® Redefining total coupling value
Features that give Steelflex the lowest lifetime operating cost
Tapered grids, made of high strength alloy steel, are quenched and tempered to spring hardness. The grid surface is then precision shot peened to compress the surface molecules.
The effect is a dramatic increase in rating, providing reserve strength for longer life or allowing a smaller size coupling to be selected. This precision technology was originally used in the production of sophisticated aircraft components.
Extended Maintenance Periods
Now you can install Steelflex and lubricate it with Falk Long Term Grease (LTG) and forget periodic, routine maintenance for fiveyears. Falk LTGgrease was developed specifically for couplings.It resists the separation of the oil and thickening agent that occurs in typical greases. The initial use of Falk LTGcoupling grease will eliminate routine lubrication cycles while still providing the necessary lubrication to the tapered grid. With LTG, Steellflex combines the high torque performance of a gear coupling and the low maintenance of a disc or elastomer coupling.
FALK STEELFLEX The simplest, most cost-effective coupling
Falk originated the tapered grid design as well as shot peening to increase fatique strength and torque ratings. Falk Steelflex redefines total coupling value up to 7.5 million in-lb, 932 0 Nm torque. Steelflex offers simpler initial installation than gear couplings. The unique “replace in place” design eliminates the need to move hubs or re-align shafts, reducing element change-out time. When you look at the overall savings in initial costs, spare parts costs, and labor costs for installation, alignment and replacement - plus improved ratings and a 5 Year Heavy-Duty Warranty - it’s easy to see what Falk’s Steelflex Grid Couplings have over the competition. No other coupling in the torque range can touch Steelflex for cost-effective performance and reliability.
Quick, Easy Installation… Replace-In-Place Design
The grid is the wearing member of a Steelflex coupling and it is a fraction of the complete coupling cost. Tapered grids are accessible through the quickly removable cover. The replace-in-place design of the replacement grids allows them to be dropped in without the need to remove or reposition hubs or realign shafts as required with gear couplings and many elastomer designs. When coupling-connected equipment must be moved, the job takes longer and costs a lot more.
Equipment Protection Against Shaft Misalignment
The grid is free to rock, pivot and float within the hub teeth. Generous misalignment capacity is provided without producing detrimental bearing side loads created by other couplings.
Equipment Protection Against Shock/ Vibratory Loads
Torsional flexibility is the ability of Falk Steelflex couplings to torsionally deflect when subjected to normal shock or vibratory loads, providing flexible accommodation to changing load conditions. Consequently,Steelflex tunes the drive system. It absorbs impact energy by spreading it over an
Two cover designs are available in the popular sizes. Standard spacer, piloted, high speed, brakewheel or disc, and controlled torque designs are also available.
Steelflex couplings and component parts, are available in popular sizes andtypes, inboth inch or metric. Our distribution centers and worldwide distribution network offer the largeststock of rough bore, finish straight bore and Taper-lock bushed hubs of any shaft coupling on the market. Plus, Steelflex grid couplings are warranted for 5 Years when lubricated with Falk LTG Long Term Grease.
increment of time. It damps vibration and reduces peak or shock loads by as much as 30%. It is a true shock absorber for rotary motion, relying on the predictable resilience of the steel grid for torsional flexibility.
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Coupling Lifetime Operating Costs 150 HP (112 KW) @ 68 RPM
U.S. Dollars @ Suggested Consumer
Production losses are notincluded in this chart.
Initial Costs Labor Costs to Install & Align Spare Parts Costs Replacement Labor Costs
$5,264 Total $2,895 Total
STEELFLEX Selection Guide STEELFLEX Selection Guide
Copyright 1963, 2003. The Falk Corporation. All Rights Reserved. Litho in U.S.A. FALK, STEELFLEX and “a good name in industry ” are registered trademarks.
Dodge is a registered trademark. Taper-Lock is a registered trademark of a bushing under license. The contents of this selection guide are subject to change without notice or obligation.
All Falk Steelflex Couplings Possess the Following Benefits
High Ratings Extended Maintenance Periods Quick Installation Easy Maintenance Versatile Design Availability Protection Against Shaft Misalignment Protection Against Shock Loads, Vibration & Thrust Loads
|How to Select||7-9|
|How to Order||1|
|Type T10 Close Coupled||12|
|Type T20 Close Coupled||13|
|Type T31 Full Spacer||14-15|
|Type T35 Half Spacer||16-17|
|Type T41 & LT Controlled Torque Coupling||18|
|Type T44 Controlled Torque Clutches||19|
|Type T45 & T42 Piloted Controlled Torque Assemblies||20|
|Optional Automatic Proximity Sensor Cutout Switch||21|
|Type T41 & 4 Slip Torque Performance Charts||2-25|
|Type T50 Floating Shaft Assembly||26|
|Type T50 Floating Shaft Selections||27|
|Type T63 Disc Brake||28-29|
|Type T70 High Speed||30|
|Type T90 Flywheel||31|
|Type T10/G82 Spacer||32|
|Recommended Commercial Keys – Inch and Metric||3|
|Bore Ranges With Square & Rectangular Keys||34-35|
|Taper Lock Bushings for Type T Hubs & Shaft Hubs||36|
|Standard AISE AC & DC Mill Motor Coupling Selections||38|
|Taper and Counter Bore Limitations||39|
|Puller Bolt Holes||39|
|Recommended Bores – Inch and Metric||40-42|
|Coupling Application Data Sheet||43|
|Headquarters & Global Sales Offices||4|
Table of Contents Dimensions & Specifications Engineering Data Shaft Diameters & Ratings for NEMA 60 Hertz & 50 Hertz Selection Guide 421-110, August 2003
Warranty extends for 3 years from date of shipment. Does not apply to Falk Omnibox, Ultramite, Fluid Couplings, Renew and spare parts. Warranty applies to Steelflex and Lifelign couplings with the use of Falk Long Term grease.
Falk Factory Warranty We’re so confident in the performance and reliability of our latest generation of Falk heavy-duty products that we’re backing this comprehensive offering with the best standard warranty in the business. Our full, 3-year Heavy-Duty Warranty provides “shaft-to-shaft” protection on all Falk components – including bearings and seals. It’s an industry first... and one more powerful reason why Falk is your ultimate bottom-line drive and coupling value. Steelflex grid couplings are warranted for 5 Years when lubricated with Falk LTG Long Term Grease.
General Information – Falk standards apply unless otherwise specified.
– All Dimensions are for reference only and are subject to change without notice unless certified.
– Unless otherwise specified, Falk coupling hubs will be bored for CLEARANCE FIT with a setscrew OVER the keyway or INTERFERENCE FIT without a setscrew.
– Torque ratings of couplings utilizing Taper-Lock bushings can differ from those that do not. Refer to Falk for details.
– If Falk is to supply coupling hubs bored for Taper-Lock bushings, the bushing manufacturer MUST be noted on the order.
– Consult Falk when limited end float is required.
† Peak torque capacity is two times the published rating. ‡ Consult Factory for higher speeds.
Maximum bores are reduced for hubs furnished with an INTERFERENCE FIT and a setscrew OVER the keyway. Refer to Falk for details. Recommended key sizes for the listed maximum bores are shown in Table 1 on Page 3.
Minimum bore is the smallest bore to which a RSB hub (rough stock bore) hub can be bored. Depending upon coupling size, rough stock bore hubs may have only a blind centering hole or a through hole that will permit remachining of the hubs to the minimum bores specified.
Falk Steelflex Grid Couplings
A generalpurpose,lubricateddesignthatcombinestheeconomyandhightorquecapacityofa gearcouplingwiththetorsionalflexibilityofanelastomer coupling. Backedbya 5–yearlubricationwarranty, FalkSteelflexcouplingsrequirenoperiodicmaintenancewhenlubricatedwithFalkLTG (LongTerm Grease) atinstallation.Featuring25sizes,Steelflexcouplingscanaccommodatetorqueloadsof7,500,0(lb-in)andshaftdiametersof20inches.
WARNING! Mixing grid coupling components from different manufacturers may cause premature failure and possible personal injury or property damage from flying debris.
Used primarily to connect the flywheel of an engine to the driven machinery. It provides for higher torque ratings with resulting smaller sizes and lower costs than elastomer couplings. (See Page 31.)
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