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LF Series

  • Most versatile Lovejoy torsional coupling
  • Configurations include flange to shaft, shaft to shaft, and floating shaft
  • Available in high temp rubber, Neoprene, Hytrel®, or Zytel®
  • Nominal torque: up to 26,500 in-lb (3000 Nm)
The LF Series coupling is designed with a unique and highly versatile elastomeric element. These can be easily integrated into a variety of coupling configurations to meet several application needs. LF Style elements are available in a variety of materials to match the necessary coupling dampening characteristics for tuning the systems critical speed away from the application operating speed. The element can be connected axially to a flywheel adapter plate or flanged hub and radially to a cylindrical center hub using the appropriate bolts. Axial bolt styles include either socket head bolts with a special dry adhesive, or S-Style bolts, which are similar to dowel pins. The radial bolts are used to connect the element to the cylindrical hub. This unique design is remarkably simple, highly effective and gives the LF torsional coupling unmatched performance capabilities. The coupling selection should be verified with a Torsional Vibration Analysis (TVA) of the system. (Information required to perform a TVA can be found inside the downloadable catalog.)
Product Specifics
LF Series Feature Summary
  • Shaft to shaft or flywheel to shaft designs
  • Designed to accommodate substantial shock loads, vibration, and misalignment
  • Low moment of inertia
  • Electrically insulating
  • No lubrication, maintenance free
  • Unique air-flow cooling design
  • Different element stiffness values allow for torsional tuning of applications with diesel engines
  • Economic design allows for cost effective solutions for torsional applications
  • Proven L-LOC spline-clamping hub virtually eliminates spline shaft profile wear and "fretting”
  • Oil, heat, and corrosion resistant elements (Hytrel®, Zytel®)
  • When used with S-bolts, the coupling can accommodate some end float
  • S-bolts accommodate applications requiring "blind” assembly
  • Model 6 unique spacer designs span gaps between equipment in excess of the normal equipment separation
  • Model 6 design available with bearings for high speeds and large amounts of equipment separation
Catalogs

LK Series
  • Simple two-piece design for low-mid power diesel driven hydraulic systems
  • Composed of flywheel mounted element & star shaped hub
  • Available in Zytel®
  • Nominal torque: up to 21,240 in-lb (2400 Nm)

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LM Series
  • Designed for mounting on standard SAE J620 flywheels
  • Available in high temp rubber (HTR), EPDM, or Silicone
  • Nominal torque: up to 33,600 in-lb (3800 Nm)

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LV Series
  • Economical alternative for agricultural & off-highway industrial equipment
  • Designed for mounting on standard SAE J620 flywheels
  • Available in high temp rubber (HTR) or EPDM
  • Nominal torque: up to 10,820 in-lb (1223 Nm)

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LVK Series
  • Designed for direct mounting on SAE J620 and metric flywheels
  • Element bonded to flywheel mounting plate and LK style hub housing
  • Available in high temp rubber (HTR) or EPDM
  • Nominal torque: up to 5,800 in-lb (655 Nm)

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