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Choosing the wrong gear coupling can be costly. Fortunately, Falk has designed a solution to save you money: Lifelign gear (G) couplings. With their low initial cost – along with the highest bore capacities and ratings available – Falk G couplings can save you as much as 35 percent over competitor brands.

Built to last longer, protect your equipment and save you money, Lifelign G couplings are ideal for a world of applications. They’re designed to AGMA standards and are interchangeable “half for half” with many other brands. With a wide variety of sizes and capacity ratings available, the durable G coupling gives users the broadest possible choice range – no matter the application or factory environment.

Longer Life

The Lifelign G coupling is built for a longer working life, with Falk’s superior Long Term Grease  lubrication and a four-point seal to extend its lifecycle and reduce maintenance. It comes with a 3-year warranty when Falk Long Term Grease is used.

Equipment Protection

Triple-crowned teeth are designed with crowns on all working portions of the teeth, so they can slide freely to accommodate misalignment and movement. As a result, connected equipment is protected from damaging loads.


Because of their AGMA standard sizes, Lifelign G couplings are one-half for one-half interchangeable with other standard gear couplings, regardless of the difference in sleeve barrel, hub and bore dimensions.

Worldwide Availability


  • flanged sleeve
  • continuous sleeve
  • double engagement
  • single engagement
  • rigid
  • spacer
  • floating shaft
  • vertical
  • mill motor
  • limited end float
  • slide
  • brake disc
  • brakewheel
  • flywheel
  • insulated
  • disconnect
  • shear pin


  • high speed
  • high misalignment
  • shear bolt
  • indexing
  • vertical adjustable
  • forced lubrication
  • spindle
  • jordan
  • metal steel
  • special bolt pattern

Bore Options

  • inch
  • metric
  • clearance fit
  • interference fit
  • hydraulic removal
  • bushing
  • splined
  • shrink disc
  • internal locking devices
  • tapered
  • mill motor
  • keyless
  • special keyways
  • multiple keyways

G Standard Flanged Sleeve

This general-purpose series is used on bulk handling systems, paper machines, fans, pumps, cranes, mixers, sugar mills, crushers and many other high-torque applications.

  • 12 sizes
  • 18 types
  • Bores to 330 mm (13 inch)
  • Capacities to 135 000 Nm (1,197,000 lb./in.)
  • Largest bore capacity and rating make this coupling an economical choice

GC Continuous Sleeve

The one-piece sleeve is used on high-speed equipment with low inertia requirements and for applications requiring a low initial cost.

  • 6 sizes
  • 2 types
  • Bores to 134 mm (4.875 inch)
  • Capacities to 18 500 Nm (163,800 lb./in.)
  • Low rotating mass
  • Compact design
  • Lowest initial cost

G Large Flanged Sleeve

This larger-capacity size is ideal for very high-torque applications in power plants, mining, cement, steel and metal mills, paper, sugar, rubber and other large industrial plants.

  • 16 sizes
  • 10 types
  • Bores to 1 219 mm (52 inch)
  • Capacities to 6 760 000 Nm (59,850,000 lb./in.)
  • Bolton seal end plates for easy seal ring replacement
  • Alloy steel option for increased capacity and life
  • Lowest initial cost for high capacity requirements
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