on . Posted in Fastener

Spring load is the force or load applied to a spring, causing it to deform or compress.  Springs are mechanical components designed to store and release mechanical energy when subjected to a force or load.  The amount of load or force applied to a spring determines how much it compresses or extends and is typically specified in units like pounds or newtons.

• Load and Deformation  -  When an external force or load is applied to a mechanical spring, it causes the spring to deform.  The spring will compress or extend.  The degree of deformation is proportional to the magnitude of the applied load.
• Spring Rate  -  The spring rate is a measure of how much force is required to compress or extend the spring by a certain amount.  A higher spring rate indicates a stiffer spring that requires more force to deform.
• Applications  -  Mechanical springs are used in various applications to provide support, cushioning, or control.
• Design Considerations  -  When designing with mechanical springs, engineers need to consider factors such as the expected load, required spring rate, material properties, and the desired spring's geometry.  The goal is to select or design a spring that can handle the intended load while providing the desired level of deformation and spring rate.
• Safety and Reliability  -  It's crucial to ensure that the applied mechanical spring load remains within the spring's safe operating limits.  Overloading a spring beyond its design limits can lead to permanent deformation or failure, which can be hazardous in certain applications.

$$P = T \; n_s$$
Symbol English Metric
$$P$$ = spring load when compressed to length  $$lbf$$ $$kg$$
$$T$$ = travel length $$in$$ $$mm$$
$$n_s$$ = spring rate $$lbf\;/\;in$$   $$kg\;/\;mm$$

$$P = n_s \; d_s$$
$$P$$ = spring load when compressed to length  $$lbf$$ $$kg$$
$$n_s$$ = spring rate $$lbf\;/\;in$$   $$kg\;/\;mm$$
$$d_s$$ = spring displacement $$in$$ $$mm$$