RS PRO Stainless Steel Extension Spring 22.1 mm Free Length x 3.2 mm Outside Diameter 8.91 N Initial Tension 0.407 821-419

RS PRO 821-419 Stainless Steel Extension Spring is engineered with a free length of 22.1 mm, an outside diameter of 3.2 mm, and wire diameter of 0.45 mm, delivering robust tension performance for various industrial applications.

Manufactured from high tensile strength stainless steel with a right-hand helix and side hook loop ends, this extension spring offers superior resistance against pulling forces by absorbing and storing energy efficiently.

The spring features an initial tension of 8.91 N and a spring rate of 0.407 N/mm, allowing a maximum extended length of 42.3 mm. These precise mechanical parameters make it suitable for use in robotics, automotive interiors and exteriors, garage door assemblies, trampoline systems, and agricultural machinery.

Produced adhering to industry standards such as DIN 17223, RoHS compliance, and BS 1408 CR3, the spring guarantees reliable performance and longevity. Its manufacturing origin in the United Kingdom further underlines its quality assurance.

Extension springs with side hook ends are essential components in multiple mechanical and fluid power applications where controlled tension and energy storage are required. This spring’s design ensures manipulation of initial tension to meet specific mechanical requirements.

The spring is constructed of corrosion-resistant stainless steel. Designed with side hook loops on both ends for installation versatility. Initial tension set at 8.91 N for consistent force application. Spring rate of 0.407 N/mm enables precise energy absorption.

Free length is 22.1 mm with a maximum extension length of 42.3 mm. Complies with DIN 17223, RoHS, BS 1408 CR3 industrial standards. Ideal for various industrial, commercial, and domestic uses including robotics and automotive sectors.

Crafted in the United Kingdom with high tensile strength stainless steel.

This extension spring is a dependable choice for engineers and technicians requiring precise, high-quality spring components for day-to-day and highly specialized tasks. Explore a wide range of Extension Springs on EnvMart for your industrial needs.