RS PRO Steel Extension Spring 25 mm Free Length x 5 mm Outside Diameter Model 751-691

RS PRO 751-691 steel extension spring features a 25 mm free length and a 5 mm outside diameter. This extension spring is designed to absorb and store the energy of pulling forces, keeping components securely connected in industrial, mechanical, and commercial machinery applications.

Manufactured from high-carbon steel piano wire, the spring offers excellent tensile strength and durability needed for heavy-duty use. Its looped hooks enable easy attachment without manual shaping, making installation straightforward and reliable.

The spring has an initial tension of 6.48 Newtons and a spring rate of 0.11 N/mm, providing controlled extension up to a maximum length of 80.8 mm under load. It complies with DIN 17223, RoHS, and BS 1408 CR3 standards, ensuring quality and safety in various environments.

Typical applications include use on garage doors, trampolines, and machinery in both domestic and commercial settings. Its robust construction supports heavy-duty usage while maintaining consistent performance.

Constructed from durable steel material for high tensile strength. Free length of 25 mm and maximum extended length of 80.8 mm. High-carbon steel piano wire provides strength for heavy loads. Initial tension rating of 6.48 Newtons ensures secure attachment.

Spring rate of 0.11 N/mm offers controlled extension behavior. Looped hooks facilitate easy installation without alteration. Certified to DIN 17223, RoHS, and BS 1408 CR3 standards. Suitable for industrial machinery, garage doors, and trampoline applications.

This RS PRO extension spring is a reliable mechanical component for energy absorption and tension control in power transmission and mechanical fastening systems. Browse the EnvMart industrial tools category for more specialized springs and mechanical components.

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