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  • JE, JN, JES & JNS Type Sleeves for S-Flex Couplings - Imperial
  • JE, JN, JES & JNS Type Sleeves for S-Flex Couplings - Imperial-2
  • Lovejoy offers flexible sleeves for S-Flex Endurance couplings in three designs: one-piece solid, one-piece split, and two-piece with retaining ring
  • The one-piece split design provides solutions for applications with unique requirements where small shaft separations inhibit the installation of a one-piece solid sleeve
  • Pre-molded teeth along the diameter of the sleeve engage with teeth of the coupling flanges
  • No clamps or screws are needed to connect the flanges with the flexible sleeve which securely lock together under torque for smooth transmission of power
  • Torque is transmitted through shear loading of the sleeve
  • All three sleeve materials are highly elastic which permits the S-Flex coupling to protect connected equipment from harmful shock loading, vibration, and shaft misalignment
JE, JN, JES, JNS Sleeve Types
    These sleeves feature a one-piece design molded in EPDM & Neoprene rubber. In the case of JES & JNS Types, the one-piece design is split to provide for ease of installation and removal.
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Max. Bore (in)

Coupling Size

Sleeve Type

Part Number

Description 

Max. Bore

Coupling Size

Sleeve Type

Outside Diameter

Material

Dimension L

Nominal Torque

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68514436384 N/A 3JE SLEEVE N/A 0.875 in N/A 3JE N/A JE N/A 1.880 in47.75 mm N/A EPDM N/A 1.000 in25.40 mm N/A 78 in·lb8.81 N·m
68514436692 N/A 3JES SLEEVE N/A 0.875 in N/A 3JES N/A JES N/A 1.880 in47.75 mm N/A EPDM N/A 1.000 in25.40 mm N/A 78 in·lb8.81 N·m
68514435356 N/A 3JN SLEEVE N/A 0.875 in N/A 3JN N/A JN N/A 1.880 in47.75 mm N/A Neoprene N/A 1.000 in25.40 mm N/A 60 in·lb6.78 N·m
68514436866 N/A 3JNS SLEEVE N/A 0.875 in N/A 3JNS N/A JNS N/A 1.880 in47.75 mm N/A Neoprene N/A 1.000 in25.40 mm N/A 60 in·lb6.78 N·m
68514436869 N/A 4JNS SLEEVE N/A 1.000 in N/A 4JNS N/A JNS N/A 2.310 in58.67 mm N/A Neoprene N/A 1.250 in31.75 mm N/A 120 in·lb13.56 N·m
68514435360 N/A 4JN SLEEVE N/A 1.000 in N/A 4JN N/A JN N/A 2.310 in58.67 mm N/A Neoprene N/A 1.250 in31.75 mm N/A 120 in·lb13.56 N·m
68514436695 N/A 4JES SLEEVE N/A 1.000 in N/A 4JES N/A JES N/A 2.310 in58.67 mm N/A EPDM N/A 1.250 in31.75 mm N/A 156 in·lb17.63 N·m
68514435359 N/A 4JE SLEEVE N/A 1.000 in N/A 4JE N/A JE N/A 2.310 in58.67 mm N/A EPDM N/A 1.250 in31.75 mm N/A 156 in·lb17.63 N·m
68514435350 N/A 5JE SLEEVE N/A 1.188 in N/A 5JE N/A JE N/A 2.940 in74.68 mm N/A EPDM N/A 1.560 in39.62 mm N/A 312 in·lb35.26 N·m
68514436698 N/A 5JES SLEEVE N/A 1.188 in N/A 5JES N/A JES N/A 2.940 in74.68 mm N/A EPDM N/A 1.560 in39.62 mm N/A 312 in·lb35.26 N·m
68514435366 N/A 5JN SLEEVE N/A 1.188 in N/A 5JN N/A JN N/A 2.940 in74.68 mm N/A Neoprene N/A 1.560 in39.62 mm N/A 240 in·lb27.12 N·m
68514436872 N/A 5JNS SLEEVE N/A 1.188 in N/A 5JNS N/A JNS N/A 2.940 in74.68 mm N/A Neoprene N/A 1.560 in39.62 mm N/A 240 in·lb27.12 N·m
68514436875 N/A 6JNS SLEEVE N/A 1.438 in N/A 6JNS N/A JNS N/A 3.75 in95.25 mm N/A Neoprene N/A 1.880 in47.75 mm N/A 450 in·lb50.84 N·m
68514436394 N/A 6JN SLEEVE N/A 1.438 in N/A 6JN N/A JN N/A 3.75 in95.25 mm N/A Neoprene N/A 1.880 in47.75 mm N/A 450 in·lb50.84 N·m
68514436701 N/A 6JES EPDM SLEEVE PACKAGED N/A 1.438 in N/A 6JES N/A JES N/A 3.75 in95.25 mm N/A EPDM N/A 1.880 in47.75 mm N/A 585 in·lb66.09 N·m
68514435569 N/A 6JE SLEEVE N/A 1.438 in N/A 6JE N/A JE N/A 3.75 in95.25 mm N/A EPDM N/A 1.880 in47.75 mm N/A 585 in·lb66.09 N·m
68514435570 N/A 7JE SLEEVE N/A 1.625 in N/A 7JE N/A JE N/A 4.340 in110.24 mm N/A EPDM N/A 2.190 in55.63 mm N/A 940 in·lb106.20 N·m
68514436704 N/A 7JES SLEEVE N/A 1.625 in N/A 7JES N/A JES N/A 4.340 in110.24 mm N/A EPDM N/A 2.190 in55.63 mm N/A 940 in·lb106.20 N·m
68514436398 N/A 7JN SLEEVE N/A 1.625 in N/A 7JN N/A JN N/A 4.340 in110.24 mm N/A Neoprene N/A 2.190 in55.63 mm N/A 725 in·lb81.91 N·m
68514436878 N/A 7JNS SLEEVE N/A 1.625 in N/A 7JNS N/A JNS N/A 4.340 in110.24 mm N/A Neoprene N/A 2.190 in55.63 mm N/A 725 in·lb81.91 N·m
68514436881 N/A 8JNS SLEEVE N/A 1.938 in N/A 8JNS N/A JNS N/A 5.060 in128.52 mm N/A Neoprene N/A 2.500 in63.50 mm N/A 1135 in·lb128.24 N·m
68514436402 N/A 8JN SLEEVE N/A 1.938 in N/A 8JN N/A JN N/A 5.060 in128.52 mm N/A Neoprene N/A 2.500 in63.50 mm N/A 1135 in·lb128.24 N·m
68514436707 N/A 8JES SLEEVE N/A 1.938 in N/A 8JES N/A JES N/A 5.060 in128.52 mm N/A EPDM N/A 2.500 in63.50 mm N/A 1475 in·lb166.66 N·m
68514435572 N/A 8JE SLEEVE N/A 1.938 in N/A 8JE N/A JE N/A 5.060 in128.52 mm N/A EPDM N/A 2.500 in63.50 mm N/A 1475 in·lb166.66 N·m
68514436405 N/A 9JE SLEEVE N/A 2.375 in N/A 9JE N/A JE N/A 6.000 in152.40 mm N/A EPDM N/A 3.000 in76.20 mm N/A 2340 in·lb264.38 N·m
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