What does constant spring rate mean?
All cylindrical compression and extension springs have what is known as a constant spring rate. In spring terms, the rate is expressed as the pounds of linear force needed to compress or extend the spring by one inch.
How do you calculate spring rate?
To calculate the amount of spring rate you will need on order to meet your working loads, simply divide the load you will be applying on your spring by the distance you expect your spring to travel or compress under that load. The equivalent to that formula will be your compression spring rate as shown below.
What is a good spring rate?
Springs should typically be compressed 25-30% of the free length when supporting the weight of the vehicle. Drag race cars will normally use a lighter rate spring (about 30%) to promote weight transfer while a street car will use a firmer rate spring (about 25%).
What is K in spring rate?
The letter k represents the “spring constant,” a number which essentially tells us how “stiff” a spring is. If you have a large value of k, that means more force is required to stretch it a certain length than you would need to stretch a less stiff spring the same length.
What’s the difference between spring rate and kg / mm?
Half of the manufacturers show their spring rates as kg/mm while others show them as lbs/in. It’s easy to forget what the conversion is so we put together a quick and easy chart to use for reference. Roughly 1 KG/mm is equal to 55.997 LBS/in. Easy way to remember is 1 KG/mm = 56 LBS/in. Hope you guys find this helpful!
How can I convert spring rates to standard spring rates?
How can I Convert Spring Rates? for a metric spring rate (kg/mm) to a standard spring rate (lbs / in) use the formula XX kg/mm x 56 = ( Spring rate in lbs/in ) Example 8kg/mm x 56= 448lb Spring For a standard spring rate (lbs / in) to metric spring rate (kg/mm) use the formula XXX lbs/in ÷ 56 =…
How to calculate spring rate for coil over suspension?
For a standard spring rate (lbs / in) to metric spring rate (kg/mm) use the formula. XXX lbs/in ÷ 56 = ( spring rate in KG/mm. Example 500lb/in ÷ 56 = 8.9K Spring Rate. So for a 8 kg/mm spring you would have a 448lb spring, and a 500lb spring is equal to a 8.9 kg/mm spring.
How is the spring constant of a spring measured?
Spring Constant is measured according to the amount of force it takes for a spring to travel/deflect one full unit of measurement. Travel/deflection refers to the distance between the loaded length/height and the free length when a spring’s body is “deformed” to meet this required loaded length.
