• 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 1/2 1/8X1/16 KW N/A 1/2 in N/A 3J N/A 1/8 x 1/16 in N/A 2.062 in52.37 mm N/A 1.500 in38.10 mm N/A 0.810 in20.57 mm
N/A 3J FLNG 3/4 3/16X3/32 KW N/A 3/4 in N/A 3J N/A 3/16 x 3/32 in N/A 2.062 in52.37 mm N/A 1.500 in38.10 mm N/A 0.810 in20.57 mm
N/A 3J FLNG 5/8 3/16X3/32 KW N/A 5/8 in N/A 3J N/A 3/16 x 3/32 in N/A 2.062 in52.37 mm N/A 1.500 in38.10 mm N/A 0.810 in20.57 mm
N/A 3J FLNG 7/8 BLND 3/16X3/32KW N/A 7/8 in N/A 3J N/A 3/16 x 3/32 in 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 1" 1/4X1/8 KW N/A 1 in N/A 4J N/A 1/4 x 1/8 in N/A 2.460 in62.48 mm N/A 1.630 in41.40 mm N/A 0.880 in22.35 mm
N/A 4J FLNG 15/16 1/4X1/8 KW N/A 15/16 in N/A 4J N/A 1/4 x 1/8 in N/A 2.460 in62.48 mm N/A 1.630 in41.40 mm N/A 0.880 in22.35 mm
N/A 4J FLNG 1/2 1/8X1/16 KW N/A 1/2 in N/A 4J N/A 1/8 x 1/16 in N/A 2.460 in62.48 mm N/A 1.630 in41.40 mm N/A 0.880 in22.35 mm
N/A 4J FLNG 3/4 3/16X3/32 KW N/A 3/4 in N/A 4J N/A 3/16 x 3/32 in N/A 2.460 in62.48 mm N/A 1.630 in41.40 mm N/A 0.880 in22.35 mm
N/A 4J FLNG 5/8 3/16X3/32 KW N/A 5/8 in N/A 4J N/A 3/16 x 3/32 in N/A 2.460 in62.48 mm N/A 1.630 in41.40 mm N/A 0.880 in22.35 mm
N/A 4J FLNG 7/8 3/16X3/32 KW N/A 7/8 in N/A 4J N/A 3/16 x 3/32 in N/A 2.460 in62.48 mm N/A 1.630 in41.40 mm N/A 0.880 in22.35 mm
N/A 5J FLNG 1" 1/4X1/8 KW N/A 1 in N/A 5J N/A 1/4 x 1/8 in N/A 3.250 in82.55 mm N/A 1.880 in47.75 mm N/A 1.060 in26.92 mm
N/A 5J FLNG 1-1/16 1/4X1/8 KW N/A 1 1/16 in N/A 5J N/A 1/4 x 1/8 in N/A 3.250 in82.55 mm N/A 1.880 in47.75 mm N/A 1.060 in26.92 mm
N/A 5J FLNG 1-1/8 1/4X1/8 KW N/A 1 1/8 in N/A 5J N/A 1/4 x 1/8 in N/A 3.250 in82.55 mm N/A 1.880 in47.75 mm N/A 1.060 in26.92 mm
N/A 5J FLNG 15/16 1/4X1/8 KW N/A 15/16 in N/A 5J N/A 1/4 x 1/8 in N/A 3.250 in82.55 mm N/A 1.880 in47.75 mm N/A 1.060 in26.92 mm
N/A 5J FLNG 1/2 1/8X1/16 KW N/A 1/2 in N/A 5J N/A 1/8 x 1/16 in N/A 3.250 in82.55 mm N/A 1.880 in47.75 mm N/A 1.060 in26.92 mm
N/A 5J FLNG 3/4 3/16X3/32 KW N/A 3/4 in N/A 5J N/A 3/16 x 3/32 in N/A 3.250 in82.55 mm N/A 1.880 in47.75 mm N/A 1.060 in26.92 mm
N/A 5J FLNG 5/8 3/16X3/32 KW N/A 5/8 in N/A 5J N/A 3/16 x 3/32 in N/A 3.250 in82.55 mm N/A 1.880 in47.75 mm N/A 1.060 in26.92 mm
N/A 5J FLNG 7/8 3/16X3/32 KW N/A 7/8 in N/A 5J N/A 3/16 x 3/32 in N/A 3.250 in82.55 mm N/A 1.880 in47.75 mm N/A 1.060 in26.92 mm
N/A 6J FLNG 1" 1/4X1/8 KW N/A 1 in N/A 6J N/A 1/4 x 1/8 in N/A 4.000 in101.60 mm N/A 2.500 in63.50 mm N/A 1.310 in33.27 mm
N/A 6J FLNG 1-1/16 1/4X1/8 KW N/A 1 1/16 in N/A 6J N/A 1/4 x 1/8 in N/A 4.000 in101.60 mm N/A 2.500 in63.50 mm N/A 1.310 in33.27 mm
N/A 6J FLNG 1-1/4 1/4X1/8 KW N/A 1 1/4 in N/A 6J N/A 1/4 x 1/8 in N/A 4.000 in101.60 mm N/A 2.500 in63.50 mm N/A 1.310 in33.27 mm
N/A 6J FLNG 1-1/8 1/4X1/8 KW N/A 1 1/8 in N/A 6J N/A 1/4 x 1/8 in N/A 4.000 in101.60 mm N/A 2.500 in63.50 mm N/A 1.310 in33.27 mm
N/A 6J FLNG 1-3/16 1/4X1/8 KW N/A 1 3/16 in N/A 6J N/A 1/4 x 1/8 in N/A 4.000 in101.60 mm N/A 2.500 in63.50 mm N/A 1.310 in33.27 mm
N/A 6J FLNG 15/16 1/4X1/8 KW N/A 15/16 in N/A 6J N/A 1/4 x 1/8 in N/A 4.000 in101.60 mm N/A 2.500 in63.50 mm N/A 1.310 in33.27 mm
N/A 6J FLNG 3/4 3/16X3/32 KW N/A 3/4 in N/A 6J N/A 3/16 x 3/32 in N/A 4.000 in101.60 mm N/A 2.500 in63.50 mm N/A 1.310 in33.27 mm
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