TM The reformulated S-Flex Endurance is the longest lasting and best performing EPDM product available on the market. The S-Flex Endurance™ coupling design is comprised of three parts: two cast zinc or iron flanges with internal teeth engage an elastomeric flexible sleeve with external teeth. Torque is transmitted through the flanges mounted on both the driver and driven shafts via the sleeve. Misalignment and torsional shock loads are absorbed by shear deflection in the sleeve. The shear characteristic of the S-Flex Endurance coupling is very well suited to absorb impact loads. Combinations of flanges and sleeves can be assembled to suit your specific application, along with thirteen sizes with torque capabilities from 60 in-lbs to 72,480 in-lbs. Flanges are offered in five models which aremade from zinc or cast iron. Sleeves are available in EPDM rubber, Neoprene, or Hytrel* to address a wide variety of application requirements. Protection frommisalignment, shock, and vibration: Mechanical Power Transmission S-Flex Couplings Overview Parallel: The S-Flex coupling accepts up to 1.575 mm of parallel misalignment without wear. The flexible coupling sleeve minimizes the radial loads imposed on equipment bearings, a problem commonly associated with parallel misalignment. Axial: The S-Flex couplings can be used in applications which require a limited amount of shaft end-float without transferring thrust loads to equipment bea r i ngs . Ax i a l movemen t o f approximately 3.175 mm accepted. Angular: The flexing action of the elastomeric sleeve and the locking feature of the mat ing teeth al lows the S-Flex Coupling to effectively handle angular misalignment up to 1°. Torsional: S-Flex couplings effectively dampen torsional shock and vibration to protect connected equipment. The epdm and neoprene sleeves have torsional wind-up flexibility of 15° at their rated torque. Hytrel provides 7° wind-up. Features » Easy to Install » Maintenance Free » No Lubrication » Dampens Vibration and Controls Shock » Torsionally Soft » Double Engagement Characteristics and Performance Facts » The S-Flex coupling design is comprised of 3 parts: 2 flanges with internal teeth engage an elastomeric flexible sleeve with external teeth. » Torque is transmitted through the flanges mounted on both the driver and driven shafts via the sleeve. » Misalignment and torsional shock loads are absorbed by shear deflection in the sleeve. » The shear characteristic of the S-Flex coupling is very well suited to absorb impact loads. » The S-Flex coupling from Lovejoy offers combinations of flanges and sleeves which can be assembled to suit your specific application. » Thirteen sizes are available with torque capabilities that range from 60 in-lbs to 72,480 in-lbs. or 6.78 Nm to 8,189 Nm. » The S-Flex flanges are offered in five models which are made from zinc or cast iron. » Sleeves are available in EPDM rubber, Neoprene, or Hytrel® to address a wide variety of application requirements. Flange Types: 3 7 J Type — Zinc die cast and cast iron, bore range … / inch to 1 / inch 8 16 or 9.5 mm to 36.5 mm. 1 1 S Type — Cast iron, bore range … / inch to 5 / inch or 12.7 mm to 140 mm. 2 2 B Type — Cast iron with bushing. SC Type — Cast iron spacer. T Type — Cast iron w/taper-lock bushing. Hubs for SC Type Spacer Coupling: SCH Type — Powdered metal or cast iron, standard length. SCHS Type — Powdered metal or cast iron, short length. Sleeve Types: JE (EPDM) 1–piece solid. JES (EPDM) 1–piece split. JN (Neoprene) 1–piece solid. JNS (Neoprene) 1–piece split. E (EPDM) 2–piece with retaining ring. N (Neoprene) 2–piece with retaining ring. H (Hytrel) 1–piece. HS (Hytrel) 2–piece split #DriveLineHarmony www.jbj.co.uk/s-flex-couplings.html 4
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