1. What is Spring Rate?

The spring rate (K) is a measure of how stiff a spring is. It represents the amount of force required to compress or extend a spring by a certain distance. For Wiseco springs, this is a crucial specification for proper suspension setup.

2. How Does the Calculator Work?

The calculator uses the spring rate equation:

Where:

• \( K \) — Spring rate (N/mm)
• \( Load \) — Applied force (Newtons)
• \( Deflection \) — Distance spring compresses or extends (mm)

Explanation: The equation shows that spring rate is directly proportional to the load and inversely proportional to the deflection.

3. Importance of Spring Rate Calculation

Details: Proper spring rate calculation is essential for suspension tuning, vehicle handling, and ensuring the spring matches the application requirements.

4. Using the Calculator

Tips: Enter the load in Newtons and deflection in millimeters. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use for the calculation?
A: The calculator uses Newtons for load and millimeters for deflection, resulting in N/mm for spring rate.

Q2: How does spring rate affect suspension?
A: Higher spring rates make the suspension stiffer, while lower rates make it softer. The ideal rate depends on vehicle weight and intended use.

Q3: Can I use this for coil springs and leaf springs?
A: This calculator works for linear-rate coil springs. Leaf springs and progressive-rate springs require more complex calculations.

Q4: How accurate is this calculation?
A: The calculation is mathematically precise for ideal linear springs. Real-world springs may vary slightly due to manufacturing tolerances.

Q5: What's a typical spring rate range?
A: Rates vary widely by application. Motorcycle suspension springs might be 5-15 N/mm, while car springs might be 20-50 N/mm or more.