S-Flex Couplings From Lovejoy
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Elastomer in Shear Type Couplings
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 The simple design of the "S“ Flex coupling ensures ease of assembly and reliable performance. No special tools are needed for installation or removal. The "S“ Flex couplings can be used in a wide variety of applications. |
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 Click here for the entire S-Flex Coupling Catalog. |
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Features and Benefits:
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The "S“ Flex coupling design is comprised of three parts. Two flanges with internal teeth engage an elastomeric flexible sleeve with external teeth. Each flange is attached to the respective shaft of the driver and driven and torque is transmitted across the flanges through 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.
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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-lb to 72,480 in-lb.
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The "S“ Flex flanges are offered in five models which are made from zinc die cast or cast iron. Sleeves are available in EPDM rubber, Neoprene, or Hytrel to address a wide variety of application requirements.
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 PARALLEL: The "S“ Flex coupling accepts up to .062 inches of parallel misalignment without wear. The flexible coupling sleeve minimizes the radial loads imposed on equipment bearings, a problem commonly associated with parallel misalignment. |
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 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 bearings. Axial movement of approximately 1/8 inch accepted. |
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 ANGULAR: The flexing action of the elastomeric sleeve and the locking feature of the mating teeth allows the S–Flex coupling to effectively handle angular misalignment up to 1°. |
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 TORSIONAL: The "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. |
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Sleeve Types JE, JN, JES, JNS
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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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Sleeve Types E, N
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These sleeves feature a two-piece design with retaining ring. The E Type is molded in EPDM rubber and the N Type is molded in Neoprene. The two-piece design is ideal for applications where there is difficulty in separating the shafts of the driver and driven.
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Sleeve Types H, HS
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These sleeves feature both a one-piece solid (H) and two-piece split (HS) design and are molded of Hytrel. The sleeves in Hytrel material are designed to transmit power for high torque applications. Because of the design and the properties of the Hytrel molded sleeve, the H and HS sleeves should not be used as direct replacements for EPDM or Neoprene sleeves, and can only be used with S, TF, or SC flanges.
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