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Falk Lifelign Gear Couplings

Save Up Front Money and Increase (English-Inch) Equipment Life

Falk Lifelign Gear Couplings Realize Life-Long SavingsInitial SavingsFalk Lifelign couplings provide the economies budget-minded users seek, without sacrificing coupling quality or reliability.4-Point seal improves lubrication retention during misalignment; high-temperature seals are available AGMA bolt pattern makes Lifelign easily interchangeable with any standard coupling on your existing applications AGMA 20 full-depth tooth triple crowning eliminates tip loading, and reduces backlash and radial clearances

Superior Bore Capacities and Torque RatingsThe unmatched bore capacities and torque ratings of Falk Lifelign couplings often allow you to select a smaller sized coupling for a given application. In fact, selections for T frame, 60 hertz electric motors result in a drop of one coupling size for half of the 28 motor frames available. The result: quality, reliability and performance with average savings of 15-20% over competitive offerings. The smaller overall size also makes Lifelign couplings well suited for limited space applications that still require large bores and high torque loads.

Ideal for Existing ApplicationsHalf for half interchangeability allows you to add capacity and realize the advantages of Lifelign couplings on your existing applications and designs, as well. Whats more, Lifeligns larger hub diameter features more metal over the keyway versus other designs, providing greater reserve strength against hub fractures due to shock or impact loads.

High-strength Grade 8 Bolts provide added protection against failure Lube holes located near the tooth mesh to ensure an adequate grease reservoir during initial startup Massive Flex Hub provides the industrys largest bore capacity for the most economical selection possible Non-turning prevailing torque locknut provides a reliable hold with fewer parts

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Greater Bore CapacityAGMA Coupling Size 1 11/2 2 21/2 3 31/2 4 41/2 5 51/2 6 7 Popular Competitive Brands 1.625 2.250 2.750 3.500 4.000 4.500 5.500 6.000 6.625 7.500 8.125 9.625 Falk LIFELIGN Couplings 1.875 2.375 2.875 3.625 4.125 4.875 5.750 6.750 7.375 8.250 9.125 10.875

Higher Torque RatingsAGMA Coupling Size 1 11/2 2 21/2 3 31/2 4 41/2 5 51/2 6 7 Popular Falk Competitive LIFELIGN Brands Couplings 7,500 10,080 18,900 20,790 31,500 37,800 56,700 66,150 94,500 107,100 151,200 163,800 220,500 270,900 302,400 371,700 434,700 500,900 573,300 655,200 749,700 800,100 1,008,000 1,197,000

Designs to Meet a Diverse Range of NeedsG Standard Flanged Sleeve General purpose series used on bulk handling systems, paper machines, fans, pumps, cranes mixers, sugar mills, crushers and many other high-torque applications. GC Continuous Sleeve Used on highspeed equipment with low inertia requirements. G Large Flanged Sleeve For very high torque applications, including power plants, mining, cement, steel and metal mills, paper, sugar, rubber and other large industrial plants.

G10 Shrouded Bolt

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Lifetime SavingsLifelign Couplings are specially designed to remain your most economical solution by extending maintenance intervals, reducing wear and increasing service life.

Reliable, convenient fastenersHigh-strength, Grade-8 fasteners provide added protection against coupling failure at the flange joint. To assure the easiest possible assembly and disassembly, fasteners are zinc-coated to prevent corrosion and feature non-turning locknuts, which allow onewrench installation with no washers Falk-Rexnord Other required.

SelectionRexnord supplies a complete range of coupling designs including, gear disc, grid, elastomer, composite, and fluid couplings.

ExpertiseRexnords extensive applications engineering expertise combines with our comprehensive product offering to assure that you wind up with the best choice for the job. and your preferred requirements.

Advanced Lube SystemFalk Long Term Grease (LTG) eliminates routine lubrication cycles for up to 3 years. The location of the lubrication hole in the sleeve ensures that an adequate grease reservoir will be maintained close to the gear mesh. Plus, Lifeligns 4point seal contact provides better retention of lubricant, eliminating the axial seal movement that can draw lubricant out of the coupling should misalignment occur. For added reliability our standard seals handle a maximum continuous operating temperature of 250F (121C) and a maximum intermittent temperature of 300F (149C). High temperature seals are available, extending maximum temperatures to 400F (204C) for continuous duty and 500F (260C) for intermittent use.

Packaged System DesignRexnords unmatched variety of gear drives and power transmission components allows us to develop complete packaged systems for your power transmission needs. In many cases, pre-packaged systems offer drop-in installation or replacement, minimizing installation time and costs.

You Get More than Cost Savings with Falk Lifelign CouplingsCapacityRexnord supplies the largest gear couplings in the world for low-speed, high-torque applications or where bore capacities of 10 to 52 are required.

Global Availability and SupportRexnords has 900+ distributor locations and 300+ sales engineers, offering local availability on a global basis.

QualityRexnord pours its own castings and completely machines the components to assure maximum product integrity with minimum lead times.

3-Year Heavy-Duty WarrantyRexnord rewrote industry expectations by offering the first 3-Year Warranty, standard, on all heavydutyproducts.

Triple crown protectionCrowning at the root, tip and face of each tooth helps minimize wear damage due to misalignment. This triple-crown effect eliminates tip loading, while also reducing backlash and radial clearances.

PerformanceRexnord can supply alloy steels for hydraulic hub removal, increased wear resistance, or to increase torque ratings by an average of 60% for only about a 30% increase in price. The torque boost can allow smaller sizes to be used, thus significantly reducing overall costs.

Online SupportRexnord online support includes spares information and pricing, service data, product literature, quoting tools and engineering artwork.

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Selection Guide 451-110, October 2006Table of ContentsNomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Available Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9 How to Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11 Quick Selection Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13 Service Factors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-15 How to Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Engineering DataRecommended Commercial Keys for Bores with One & Two Keys Inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Maximum Bores Inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Recommended Bore Tolerances, Falk Steel Coupling Hubs . . . . . . . . 52 Flanged Sleeve & Rigid Hub Details . . . . . . . . . . . . . . . . . . . . . . . . 53 Sleeve Jack Bolt Holes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Puller Bolt Holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Torsional Stiffness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 WR2 Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Bore Ranges for Reduced Shank Dia. Hubs Inches . . . . . . . . . . . . 54 Puller Bolt Holes for Reduced Shank Dia. Hubs Inches . . . . . . . . . 54 Standard Filleted Keyways & Chamfered Keys . . . . . . . . . . . . . . . . . 55 Misalignment Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

CONTINUOUS SLEEVE GEAR COUPLINGS Dimensions & SpecificationsType GC02 Double Engagement . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Type GC05 Single Engagement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Type GC05 Floating Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 STANDARD FLANGED SLEEVE GEAR COUPLINGS Dimensions & Specifications Type G20 Double Engagement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Type G32 Spacer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Type G52 Single Engagement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Type G52 Floating Shaft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-23 Type GV20 Vertical Double Engagement . . . . . . . . . . . . . . . . . . . . . 24 Type GV52 Vertical Single Engagement . . . . . . . . . . . . . . . . . . . . . . 25 Types G62/G66 Brakewheel, Straight Bores & G63 Disc Brake . . . . . 26 Types G62 & G66 Brakewheel, Taper Bores . . . . . . . . . . . . . . . . . . . 27 Type GL20 Slide Double Engagement . . . . . . . . . . . . . . . . . . . . . . . 28 Type GL52 Slide Single Engagement . . . . . . . . . . . . . . . . . . . . . . . . 29 Type G70 Disconnect, Inching Drives . . . . . . . . . . . . . . . . . . . . . . . . 30 Type G72 Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Type GP20/52/82 Insulated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Type G82 Rigid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Type GV82 Rigid Thrust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Type GR20 Shear Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .