How do you convert spring rate?

Spring Rates – Suspension 102

1. How can I Convert Spring Rates? for a metric spring rate (kg/mm) to a standard spring rate (lbs / in) use the formula.
2. Example 8kg/mm x 56= 448lb Spring. For a standard spring rate (lbs / in) to metric spring rate (kg/mm) use the formula.
3. Example 500lb/in ÷ 56 = 8.9K Spring Rate.

How is suspension spring rate calculated?

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 5k spring rate?

So if a spring is listed at 5k it would mean it takes 5 kilograms of force to compress the spring 1 millimeter. If your spring rate is 450lb/in (pounds per inch) it will mean it takes 450 pounds of force to compress the spring 1 inch.

How do you calculate dual spring rate?

The formula for a dual spring system is as follows: top spring (TS) times bottom spring (BS) divided by the TS plus the BS. ( TS x BS ) divided by ( TS + BS ) Her is how that goes: ( 250 x 250 ) divided by ( 250 + 250 ) next (62,500) divided by (500) equals 125 lb combined spring rate.

What is a good spring rate?

The softer rate will generate a smoother ride while the stiffer spring will result in a firmer ride. You need to consider these options when you are selecting the proper spring rate for your application. Springs should typically be compressed 25-30% of the free length when supporting the weight of the vehicle.

What makes a spring stiffer?

The amount of coils on a spring also determines the stiffness of a spring. The less coils you have, the stiffer your spring will be. In the case of a torsion spring, less coils give you more torque but less travel. In the case of a compression spring, it is based on the pitch in between its coils.

How does spring rate affect ride quality?

The advantage of a progressive spring is that it can provide a variable ride quality-softer when the suspension is at a normal ride height, and stiffer as the spring is compressed, such as when the suspension is being pushed hard through a corner.

What is a spring rate?

suspension systems in automobiles In automobile: Suspension. …and deflection known as the spring rate, defined as the load in pounds divided by the deflection of the spring in inches. A soft spring has a low rate and deflects a greater distance under a given load.

Why do coilovers have 2 springs?

The helper spring is there for a reason. It has a role and purpose to the function of the full coilover system. By removing it you limit the full function of the coilover and are in risk of damaging the coilover or vehicle.

Does the spring constant change if a spring is cut?

When the spring is cut into two equal halves, the spring constant doubles. We know that force is directly proportional to the length.

How to calculate spring rate for Norwest suspension?

.: Spring Rate Conversion Calculator :. | NorWest Suspension LLC .: Spring Rate Conversion Calculator :. After you have entered in a value please select a conversion.

How to calculate spring rate for axle suspension?

Spring rate calculations for solid axle suspension are the same as above except the Force Ratio (Fr) = 1.

Can you change the rate of a spring?

Most springs do not loose or change rate with use as much as they can change their “free” length. Besides rate, other important considerations exist. The most obvious are the physical dimensions which determine the suitability for the spring to fit into your suspension component, either rear shocks or front fork.

How do you calculate the spring rate on a car?

Weigh your car to determine the weight on the wheels (W). Divide the weight on the wheel by Fr to determine the force required at the spring (Sf). If your spring is mounted at an angle you will need to consider that in your spring calculations.