Falk Steelflex Grid Couplings Redefining Total Coupling Value

1 FFaallkk SStteeeellfflleexx GGrriidd CCoouupplliinnggssRReeddeeffiinniinngg TToottaall CCoouupplliinngg VVaalluuee((EEnngglliisshh--IInncchh))2 Features That Give Steelflex theLowest LifetimeOperating CostLonger LifeTapered grids, made of highstrength alloy steel, are quenchedand tempered to spring grid surface is then precisionshot peened to compress the sur-face effect is a dramatic increase inrating, providing reserve strength forlonger life or allowing a smaller sizecoupling to be precision technology was originally used in the production ofsophisticated aircraft Maintenance PeriodsNow you can install Steelflex and lubricate it with falk Long TermGrease (LTG) and forget periodic,routine maintenance for five LTGgrease was developed specifically for resiststhe separation of the oil and thick-ening agent that occurs in typicalgreases. The initial use of falk LTG couplinggrease will eliminate routine lubrication cycles while still providing the necessary lubricationto the tapered LTG, Steellflex combines thehigh torque performance of a gearcoupling and the low maintenanceof a disc or elastomer Steelflex The Simplest, Most Cost-Effective CouplingThe falk name is synonymous with grid Couplings , as well as usingshot peening to increase fatique strength and torque redefines Total Coupling Value up to million in-lb, 932 000 Nm torque.

2 Steelflex offers simpler initial installation thangear Couplings , and our new HD design outlasts competitive gear Couplings 2 to 1. The unique replace in place design eliminates the need to movehubs or re-align shafts, reducing element change-out you look (see chart below) at the overall savings in initial costs,spare parts costs, and labor costs for installation, alignment andreplacement - plus improved ratings and a 5 Year Heavy-DutyWarranty - it s easy to see what Steelflex grid Couplings have over thecompetition. No other Coupling in the torque range can touchSteelflex for cost-effective performance and 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000I I I I I I I I ICoupling Lifetime Operating Costs150 HP (112 KW) @ 68 Dollars @ Suggested ConsumerProduction losses are notincluded in this Costs Labor Costs to Install & Align Spare Parts Costs Replacement Labor Costs$7,717 Total $5,264 Total $2,895 Total $2,390 TotalType HD Couplings The Preferred Replacement forGear Couplings Durable Nitrile Seals are heat resistant to 275 F.

3 (135 C.) Powder-coated covers provide chemical , Easy DesignThe grid is the wearing member of a Steelflex Coupling and it is afraction of the complete couplingcost. Tapered grids are accessiblethrough the quickly removablecover. The replace-in-place design of thereplacement grids allows them to bedropped in without the need toremove or reposition hubs or realignshafts as required with gear Couplings and many elastomerdesignsWhen Coupling -connected equipment must be moved, the jobtakes longer and costs a lot Protection AgainstShaft MisalignmentThe grid is free to rock, pivot andfloat within the hub teeth. Generousmisalignment capacity is providedwithout producing detrimentalbearing side loads created by Protection AgainstShock/Vibratory LoadsTorsional flexibility is theability of FalkSteelflex Couplings to torsionallydeflect whensubjected tonormal shock orvibratory loads,providing flexible accommodation to changing , Steelflex tunes thedrive system.

4 It absorbs impactenergy by spreading it over anincrement of time. It damps vibra-tion and reduces peak or shock loadsby as much as 30%. It is a trueshock absorber for rotary motion,relying on the predictable resilienceof the steel grid for torsional DesignsTwo cover designs are available in the popular sizes. Standard spacer,piloted, high speed, brakewheel or disc, and controlled torquedesigns are also AvailabilitySteelflex Couplings and component parts, are available in popular sizesand types. Our distribution centers and worldwide distribution networkoffer 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 lubricatedwith falk LTG Long Term LOADLIGHT LOADLOW CONTACTCONTACT INCREASESS teelflex HD grid Couplings The preferred replacement forgear couplings4 SStteeeellfflleexx SSeelleeccttiioonn GGuuiiddee Rexnord Industries, LLC, 1963, 2007.

5 (421-110) 5 Copyright 1963, 2007. Rexnord Industries, LLC AllRights Reserved. Litho in , is a registered trademark. falk , Steelflex , AND a good name in industry aretrademarks of is a registered is a registered trademark of a bushing under contents of this selection guide are subject to change without notice or contained herein should be confirmed before placing falk Steelflex Couplings Possess theFollowing Benefits High Ratings Extended Maintenance Periods Quick Installation Easy Maintenance Versatile Design Availability Protection Against Shaft Misalignment Protection Against Shock Loads, Vibration & Thrust LoadsTable of ContentsHow to Select, Standard & Formula Selection 12 How to & SpecificationsType T10 Close 14 Type T20 Close 15 Type T31 Full T35 Half T41 & LT Controlled Torque T44 Controlled Torque T45 & T42 Piloted Controlled Torque Automatic Proximity Sensor Cutout T41 & 44 Slip Torque Performance T50 Floating Shaft T50 Floating Shaft T63 Disc T70 High T90 T10/G82 DataRecommended Commercial Keys Inch and Diameters & Ratings for NEMA 60 Hertz & 50 HertzMetric Ranges With Square & Rectangular Lock Bushings for Type T Hubs & Shaft AISE AC & DC Mill Motor Coupling Selections.

6 41 Taper and Counter Bore Bolt Bores Inch and Application Data & Global Sales Guide 421-110, March 2007 HWarranty extends for 3 years from date of shipment. Does not apply to falk Omnibox, Ultramite, Fluid Couplings , Renew and spare parts. Warranty applies toSteelflex and Lifelign Couplings with the use of falk Long Term WarrantyWe re so confident in the performance andreliability of our latest generation of falk and Rexnord gear drivesthat we re backing this comprehensive offering with the beststandard warranty in the business. Our full, 3-year Heavy-DutyWarranty provides shaft-to-shaft protection on all Falkcomponents including bearings and seals. It s an industry one more powerful reason why Rexnord is your ultimatebottom-line drive and Coupling grid couplingsare warranted for 5 Years when lubricated with falk LTG LongTerm Information Rexnord standards apply unless otherwise specified. All Dimensions are for reference only and are subject to changewithout notice unless certified.

7 Unless otherwise specified, falk Coupling hub Sizes 1020 thru1090 will be bored for CLEARANCE FIT with a setscrew OVERthe keyway. Sizes 1100 and larger will be furnished forINTERFERENCE FIT without a setscrew (see Table 27, Page 43).Recommended key sizes for the listed maximum bores areshowninTable13onPage36. Torque ratings of Couplings utilizing Taper-Lock bushings candiffer from those that do not. Refer to Rexnord for details. If falk is to supply Coupling hubs bored for Taper-Lockbushings, the bushing manufacturer MUST be noted on theorder. Consult Rexnord when limited end float is Notes Peak torque capacity is two times the published rating. Torqueratings for hubs with bushings differ from those shown, refer toTable 19, Page 39. Consult Factory for higher speeds. Maximum bores are reduced for hubs furnished with anINTERFERENCE FIT and a setscrew OVER the keyway. Refer toRexnord Engineering Sheet 427-105 for bore is the smallest bore to which a RSB hub (roughstock bore) hub can be bored.

8 Depending upon Coupling size,rough stock bore hubs may have only a blind centering holeor a through hole that will permit remachining of the hubs tothe minimum bores Steelflex grid CouplingsA general purpose, lubricated design that combines the economy and high torque capacity of a gear Coupling with the torsional flexibility of an elastomercoupling. Backed by a 5 year lubrication warranty, falk Steelflex Couplings require no periodic maintenance when lubricated with falk LTG (Long Term Grease)at installation. Featuring 25 sizes, Steelflex Couplings can accommodate torque loads of 7,500,000 (lb-in) and shaft diameters of 20 (421-110) Rexnord Industries, LLC, 1963, ! Mixing grid Coupling components fromdifferent manufacturersmay cause prematurefailure and possible personal injury or property damage from flying primarily to connect theflywheel of an engine to thedriven machinery. It provides forhigher torque ratings withresulting smaller sizes and lowercosts than elastomer Couplings .

9 (See Page 34.)Double piloted designfor connectingequipment where thedistance between shaftsis too large for a spacertype Coupling .(See Pages28 & 29.)Proven to be far superior todrum-type brakes in cost,construction and performance.(See Pages 30 thru 32.)Complete center section dropsout for easy service of connectedequipment bearings and for pump applications.(See Pages 16 & 17.)A combination of twostandard Rexnordcouplings. Utilizes readilyavailable components foran economical price andshorter lead time thanT31/T35 Couplings .(See Page 35.)An economical spacer designfor easy service of connectedequipment bearings and for pump applications.(See Pages 18 & 19.)Type T10 Close CoupledType T50 PilotedType T50 Floating ShaftType BW BrakewheelType T10/G82 SpacerType T41/T44 Controlled TorqueType T35 Half SpacerType T90 FlywheelType T31 Full SpacerType T70 High SpeedType T20 Close CoupledType T63 Disc BrakeProvides a built-in breaking surface right at ornear the centerline of the and dollars.

10 (See Selection Guide431-310.)Provides adjustable slipping action toprotect connected equipment fromshock, jams, or temporary overloads.(See Pages 20 thru 27.)Designed for operating speeds beyondthose of the T10 and T20 a one-piece cover and balancedcomponents. (See Page 33.)A double flexing design featuring avertically split steel cover. Ideal forhigher running speeds. (See Page 15.)For use on line shaft be used in place of singleengagement gear Couplings toprovide torsional resiliency andlower overall operating cost.(See Pages 28 & 29.)A double flexing, close-coupleddesign for use in four bearingsystems. Features a horizontally splitcover which allows for gridreplacement without the movement ofthe connected equipment.(See Page 14.)How to SelectStandard Selection Method (except T41/T44 &T63)The standard selection method can be used for most motor,turbine, or engine driven applications. The following informationis required to select a flexible Coupling :lHorsepower or or type of equipment to be connected (motor topump, gear drive to conveyor, etc.)