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  • S-Flex J Type Flanges w/o Keyway - Imperial
  • S-Flex J Type Flanges w/o Keyway - Imperial-2
  • The J Type flanges in sizes 3J and 4J are made from die cast of high strength zinc alloy (tensile strength of 41,000 psi) and are furnished bore-to-size.
  • Size 5J is provided in either zinc alloy or cast iron depending on the bore size.
  • Size 6J is made from cast iron.
  • J flanges are compatible with EPDM or Neoprene sleeves.
  • Each flange has a keyway and two set screws (one set screw over the key and one at 90° to the keyway).
  • The J Type coupling consists of two flanges and one sleeve.
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Bore Size  (in)

Coupling Size

Keyway Size

Part Number

Description 

Bore Size 

Coupling Size

Keyway Size (W x D)

Outside Diameter

Dimension HD

Dimension L

CAD

N/A 3J-FLNG-1/2-NKW N/A 1/2 in N/A 3J N/A No Keyway N/A 2.062 in52.37 mm N/A 1.500 in38.10 mm N/A 0.810 in20.57 mm N/A
N/A 3J-FLNG-3/8-NKW N/A 3/8 in N/A 3J N/A No Keyway N/A 2.062 in52.37 mm N/A 1.500 in38.10 mm N/A 0.810 in20.57 mm N/A CAD
N/A 4J-FLNG-1/2-NKW N/A 1/2 in N/A 4J N/A No Keyway N/A 2.460 in62.48 mm N/A 1.630 in41.40 mm N/A 0.880 in22.35 mm N/A CAD
N/A 5J-FLNG-1/2-NKW N/A 1/2 in N/A 5J N/A No Keyway N/A 3.250 in82.55 mm N/A 1.880 in47.75 mm N/A 1.060 in26.92 mm N/A
N/A 6J-FLNG-5/8-NKW N/A 5/8 in N/A 6J N/A No Keyway N/A 4.000 in101.60 mm N/A 2.500 in63.50 mm N/A 1.310 in33.27 mm N/A
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