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Lovejoy S-Flex Couplings

Lovejoy S-Flex Couplings
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The Lovejoy S–Flex coupling consists of three parts: Two flanges with internal teeth engage an elastomeric flexible sleeve with external teeth. Each flange is attached to the respective shaft of the driver and driven and torque is transmitted across the flanges through the sleeve. Misalignment and torsional shock loads are absorbed by shear deflection in the sleeve. The shear characteristic of the Lovejoy S–Flex coupling is very well suited to absorb impact loads.

The Lovejoy S–Flex coupling is available in combinations of flanges and sleeves which can be assembled to suit specific applications. Thirteen sizes are available with torque capabilities that range from 60 in-lbs (6.78 Nm) to 72,480 in-lbs (8189 Nm). The S–Flex flanges are offered in five models which are made from zinc die cast or cast iron. Sleeves are available in EPDM rubber, Neoprene, or Hytrel® to address a wide variety of application requirements.

The simple design of the Lovejoy S–Flex coupling ensures ease of assembly and reliable performance. No special tools are needed for installation or removal. The Lovejoy S–Flex couplings can be used in a wide variety of applications.

Lovejoy S Flex CouplingsFeatures and Benefits of the Lovejoy S-Flex Coupling include:

  • Easy to Install
  • Maintenance Free
  • No Lubrication
  • Dampens Vibration and Controls Shock
  • Torsionally Soft
  • Double Engagement

Available Flange Types for the Lovejoy S-Flex Coupling:

  • J Type — Zinc Die Cast and Cast Iron, Bore Range … 3/8 inch – 1-7/16 inch
  • S Type — Cast Iron, Bore Range … 1/2 inch – 5-1/2 inch
  • B Type — Cast Iron with bushing
  • SC Type — Cast Iron Spacer
  • T Type — Cast Iron w/Taper-lock bushing

Available Hubs for SC Type Spacer Coupling:

  • SCH Type — Powdered Metal or Cast Iron, Standard Length
  • SCHS Type — Powdered Metal or Cast Iron, Short Length

Available Sleeve Types for the Lovejoy S-Flex Coupling:

  • JE – (EPDM) 1–piece solid
  • JES – (EPDM) 1–piece split
  • JN – (Neoprene) 1–piece solid
  • JNS – (Neoprene) 1–piece split
  • E – (EPDM ) 2–piece with retaining ring
  • N – (Neoprene) 2–piece with retaining ring
  • H – (Hytrel) 1–piece
  • HS – (Hytrel) 2–piece split