• Lovejoy S-Flex Sleeve Couplings (Size 3-16)
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Lovejoy S-Flex Sleeve Couplings (Size 3-16)

Lovejoy S-Flex Sleeve Couplings (Size 3-16)

Lovejoy S-Flex couplings use a toothed elastomer sleeve between two flanges, giving a simple three-part, lubrication-free coupling for pumps and general machinery. J, S, TQ (Taper-Qik) and SC spacer flanges are offered.

Key features

  • Toothed EPDM, neoprene or Hytrel sleeve
  • Torsionally soft, absorbs shock and vibration
  • No metal-to-metal contact, no lubrication
  • J, S, TQ and SC spacer flange types
  • Sizes 3 to 16

Specifications

Sizes 3-16
Sleeves EPDM, Neoprene, Hytrel
Rated torque (EPDM) 6.78-5,338 Nm
Angular misalignment 1 deg (EPDM/Neoprene)
Order example S-Flex 9S / 9JE, 48x14x3.8 / 60x18x4.4
Source Lovejoy S-Flex coupling catalogue (J-KOP edition)
S-Flex 3 Max bore: .875 in | EPDM torque: 6.78 Nm | Max speed: 9200 rpm | Flanges: J, S, TQ, SC
S-Flex 4 Max bore: 1.000 in | EPDM torque: 13.56 Nm | Max speed: 7600 rpm | Flanges: J, S, TQ, SC
S-Flex 5 Max bore: 1.188 in | EPDM torque: 27.12 Nm | Max speed: 7600 rpm | Flanges: J, S, TQ, SC
S-Flex 6 Max bore: 1.438 in | EPDM torque: 50.84 Nm | Max speed: 6000 rpm | Flanges: J, S, TQ, SC
S-Flex 7 Max bore: 1.625 in | EPDM torque: 81.91 Nm | Max speed: 5250 rpm | Flanges: J, S, TQ, SC
S-Flex 8 Max bore: 1.938 in | EPDM torque: 128.24 Nm | Max speed: 4500 rpm | Flanges: J, S, TQ, SC
S-Flex 9 Max bore: 2.375 in | EPDM torque: 203.37 Nm | Max speed: 3750 rpm | Flanges: J, S, TQ, SC
S-Flex 10 Max bore: 2.750 in | EPDM torque: 324.83 Nm | Max speed: 3600 rpm | Flanges: J, S, TQ, SC
S-Flex 11 Max bore: 3.375 in | EPDM torque: 511.82 Nm | Max speed: 3600 rpm | Flanges: J, S, TQ, SC
S-Flex 12 Max bore: 3.875 in | EPDM torque: 813.49 Nm | Max speed: 2800 rpm | Flanges: J, S, TQ, SC
S-Flex 13 Max bore: 4.500 in | EPDM torque: 1282.38 Nm | Max speed: 2400 rpm | Flanges: J, S, TQ, SC
S-Flex 14 Max bore: 5.000 in | EPDM torque: 2033.73 Nm | Max speed: 2200 rpm | Flanges: J, S, TQ, SC
S-Flex 16 Max bore: 5.500 in | EPDM torque: 5338.54 Nm | Max speed: 1500 rpm | Flanges: J, S, TQ, SC
Sleeve CouplingLovejoy
13 product codes available in this family
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Lovejoy S-Flex Sleeve Couplings (Size 3-16)

Brand Lovejoy·Sleeve Coupling

Available part numbers (13)

S-Flex 3, S-Flex 4, S-Flex 5, S-Flex 6, S-Flex 7, S-Flex 8, S-Flex 9, S-Flex 10, S-Flex 11, S-Flex 12 + 3 more — see full table ↓

How to order

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Product codeSpec
S-Flex 3Max bore: .875 in | EPDM torque: 6.78 Nm | Max speed: 9200 rpm | Flanges: J, S, TQ, SC
S-Flex 4Max bore: 1.000 in | EPDM torque: 13.56 Nm | Max speed: 7600 rpm | Flanges: J, S, TQ, SC
S-Flex 5Max bore: 1.188 in | EPDM torque: 27.12 Nm | Max speed: 7600 rpm | Flanges: J, S, TQ, SC
S-Flex 6Max bore: 1.438 in | EPDM torque: 50.84 Nm | Max speed: 6000 rpm | Flanges: J, S, TQ, SC
S-Flex 7Max bore: 1.625 in | EPDM torque: 81.91 Nm | Max speed: 5250 rpm | Flanges: J, S, TQ, SC
S-Flex 8Max bore: 1.938 in | EPDM torque: 128.24 Nm | Max speed: 4500 rpm | Flanges: J, S, TQ, SC
S-Flex 9Max bore: 2.375 in | EPDM torque: 203.37 Nm | Max speed: 3750 rpm | Flanges: J, S, TQ, SC
S-Flex 10Max bore: 2.750 in | EPDM torque: 324.83 Nm | Max speed: 3600 rpm | Flanges: J, S, TQ, SC
S-Flex 11Max bore: 3.375 in | EPDM torque: 511.82 Nm | Max speed: 3600 rpm | Flanges: J, S, TQ, SC
S-Flex 12Max bore: 3.875 in | EPDM torque: 813.49 Nm | Max speed: 2800 rpm | Flanges: J, S, TQ, SC
S-Flex 13Max bore: 4.500 in | EPDM torque: 1282.38 Nm | Max speed: 2400 rpm | Flanges: J, S, TQ, SC
S-Flex 14Max bore: 5.000 in | EPDM torque: 2033.73 Nm | Max speed: 2200 rpm | Flanges: J, S, TQ, SC
S-Flex 16Max bore: 5.500 in | EPDM torque: 5338.54 Nm | Max speed: 1500 rpm | Flanges: J, S, TQ, SC

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