TB WOOD’S Sure-Flex SJ 3 JX 35200101 Coupling

TB Wood’s Sure-Flex SJ 3 JX Shaft Coupling

Description

This is a complete Sure-Flex shaft coupling, size 3, from TB Wood’s. The package includes two Zamac SJ type flanges and one flexible sleeve. These couplings are known for their exceptional ability to handle angular and parallel misalignment, as well as end float, making them ideal for a wide range of industrial power transmission applications. The four-piece design ensures a simple and secure installation.

Specifications

• Manufacturer: TB Wood’s
• Series: Sure-Flex
• Model: SJ 3 JX
• Size: 3
• Flange Material: Zamac (Zinc-Aluminum Alloy)
• Sleeve Material: EPDM or Neoprene (depending on batch)
• Bore: Pre-bored (Voorgeboord)

Label Info

• Item No: 35200101
• Description: KOPPELING ZAMAC VOORGEBOORD
• Type: SUREFLEX SJ 3 JX

Application

Designed for connecting shafts in general industrial machinery such as pumps, conveyors, fans, and gearboxes where misalignment compensation and vibration damping are required.

Country of Origin

Made in the USA.

CO2 Impact

By purchasing this refurbished component, you contribute to a circular economy and avoid approximately 3.6 kg of CO2 emissions associated with the production of a new unit.

Availability

In stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the maximum angular and parallel misalignment for a Size 3 Sure-Flex coupling?

A standard size 3 Sure-Flex coupling can typically accommodate up to 1 degree of angular misalignment and up to 0.38 mm of parallel misalignment. Always consult the manufacturer’s technical data sheet for precise limits.

What is the advantage of a Zamac flange compared to a cast iron one?

Zamac flanges are die-cast, offering good dimensional accuracy and a smooth surface finish. They are lighter than cast iron and offer good corrosion resistance, making them suitable for smaller, general-purpose applications where high strength is not the primary requirement.

Is the included flexible sleeve resistant to common industrial oils and chemicals?

Standard EPDM and Neoprene sleeves offer good resistance to water, ozone, and many common chemicals. However, for applications with specific oils or aggressive solvents, a Hytrel sleeve may be required. Please verify compatibility with your specific operating environment.

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Last Update: Friday, March 13, 2026