David Bayer wrote: > Wait a minute, are you inserting donuts in the spring coils or between the > perch and the top of the spring? Inserting the doughnut between coils would > reduce the number of active coils, but inserting it between the spring perch > and the top of the spring would not as you are not changing the spring at all > > dave A spacer effectively reduces coils as follows. Take a spring ten inches long that has 10 coils. Put a spacer 2 inches wide on top. Now, fit the spring in between fully extended spring perches that are 10 inches apart. You have to compress the spring 2 inches to do this since the spring perches will not expand any further to accomidate the 2" spacer, and the spacer and spring have a combined length of 12". Thus, you compress the spring so it is now 8" long with a 2" solid spacer on top. You have thus effectively taken out two colis without changing spring length, given this hypothetical 10" spring with 10 coils. Now this spring...as pre-loaded...is stiffer than a non-pre-loaded spring. The same weight will compress it less that the 10" spring without a spacer. |
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