• Sure-Flex Shaft Coupling

Sure-Flex Shaft Coupling

With well over 35 years of product knowledge combined with a large stock of Sure-Flex Couplings and Sleeves provides a great basic shaft coupling solution. Mix that with knowledgeable staff who are always available, and you have a great combination. The basic coupling uses two cast hubs available pre-bored or pilot bored and  a proven centre element produced from a elastic polymer, to  compensate for arduous shaft misalignments.  The proven product delivers reliable torque transmission whilst simultaneously dealing with shock and vibration.

The name TB Wood’s Sure-Flex®  Product has long been associated with quality. TB Wood’sSure-Flex® couplings utilises a rubber (EPDM), Neoprene, or Hytrel sleeve between two cast hubs. The flexible element allows 4-way flexing action and absorbs virtually all types of shock, misalignment, and end float. The sleeves also exhibit exceptional torsional flexibility. The cast hubs can be supplied bored and keyed to suit motor shafts from 10mm to 140mm as standard . With Sure-Flex® couplings, the need for lubrication and maintenance is eliminated. As a result, these couplings provide clean, dependable, and quiet performance for a variety of applications.

Sure-Flex®  shaft couplings can be installed quickly and easily because there are no bolts, gaskets, covers or seals. Alignment can be checked with a straight edge placed across the outside of the precision machined flanges. No special tools are needed for installation, alignment or removal. With Sure-Flex couplings, the need for lubrication and maintenance is also eliminated. The uniquely designed connecting teeth allow lateral flexibility whilst accepting both parallel and angular misalignment without wear.As a result, these couplings provide clean, dependable, and quiet performance for a variety of applications.

  • Four-way flexing action absorbs extreme torsional shock and vibration
  • Accepts both parallel and angular misalignment without wear
  • Fast and easy installation without bolts, gaskets, covers or seals
  • Lubrication-free design provides quiet, reliable performance
  • Flexible sleeves available in EPDM, Neoprene and Hytrel
  • Choose from an extensive range of sizes, using BTS, bushed, clamp and spacer flanges
  • To suit shaft sizes from 10mm to 140mm, with keyways
  • Hytrel sleeves for petrochemical applications are standard

If you require further technical information, please do not hesitate to contact our sales engineers who will be more than happy to help you with your selection.

  • Sure-Flex Shaft Coupling
  • Spacer coupling designs
    Spacer coupling designs
  • Split, solid or split and ring sleeve designs
    Split, solid or split and ring sleeve designs
  • Hytrel hubs for petro-chemical environments
    Hytrel hubs for petro-chemical environments
  • Ideal for pumps and compressors
    Ideal for pumps and compressors
  • 4 way flexing
    4 way flexing
  • Trouble free operation
    Trouble free operation
  • Stocked and ready for delivery
    Stocked and ready for delivery

Sure-Flex sleeves are available in four materials or compounds and various shape configurations.

 

Flexible sleeves for Sure-Flex couplings are available in four materials (EPDM, Neoprene, Hytrel and Urethane) and in three basic constructions. The various types are shown and described here.

 

JE-JES-JN-JNS SleevesJE-JES-JN-JNS

J sleeves are molded EPDM rubber (E) or Neoprene (N). They are available in one-piece solid construction (JE, JN) or one-piece split construction (JES, JNS). These sleeves may be used in any Sure-Flex flange within a given size.

E-N SleevesE-N

These sleeves are of two-piece design with a retaining ring. They are available in either EPDM (E) or Neoprene (N). They may be used with any flange within a given size. Sleeves are shown here assembled and disassembled.

H-HS-U SleevesH-HS-U

H (Hytrel) and U (Urethane) sleeves designed for high-torque applications, transmit four times as much power as an equivalent EPDM or Neoprene sleeve. Available in one-piece solid construction (H or U) or two-piece split construction (HS), these can be used only with S, C, and SC flanges. They cannot be used with J or B flanges or as direct replacements for EPDM or Neoprene sleeves.

 

A full range of hubs and flanges are available to suit all the sleeves. All details can be found on the on line catalogue or call our knowledgeable sales team to help with your specification on 01386 421005.

Available Flange Types

Type SC Spacer component hub

Type SC Spacer component hub

Type J flanges sizes 3 4 and 5 are manufactured of sintered carbon steel

Type J flanges sizes 3 4 and 5 are manufactured of sintered carbon steel

Type B flanges for use with Woods Sure-Grip Bushings

Type B flanges for use with Wood's Sure-Grip Bushings

Type C Clamp Hub flanges

Type C Clamp Hub flanges

Type S flanges sizes 6 through 16 are manufactured of high strengthcast iron

Type S flanges sizes 6 through 16 are manufactured of high strengthcast iron

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