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  • 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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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
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