• 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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Item #

Description 

Bore Size

Coupling Size

Keyway Size (W x D)

Outside Diameter

Dimension HD

Dimension L

N/A 3J FLNG 9MM N/KW N/A 9.00 mm 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 4J FLNG 12MM N/KW N/A 12.00 mm 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
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