Posted: 12/22/2009 1:48:25 PM EDT
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How to Determine Rate For Compression Springs
Rate which is the change in load per unit deflection, may be determined by the following procedure: 1. Deflect spring to approximately 20 percent of available deflection and measure load (P1) and spring length (L1). 2. Deflect spring to approximately 80 percent of available deflection and measure load (P2) and spring length (L2). Be certain that no coils (other than closed ends) are touching L2. 3. Calculate rate (R) lb./in. (N/mm) R = (P2 - P1) / (L1 - L2) |
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Quoted:
How to Determine Rate For Compression Springs Rate which is the change in load per unit deflection, may be determined by the following procedure: 1. Deflect spring to approximately 20 percent of available deflection and measure load (P1) and spring length (L1). 2. Deflect spring to approximately 80 percent of available deflection and measure load (P2) and spring length (L2). Be certain that no coils (other than closed ends) are touching L2. 3. Calculate rate (R) lb./in. (N/mm) R = (P2 - P1) / (L1 - L2) Or you could just buy a new one, they're cheap. 
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