Springs

[Rog]

Hi,

I just acquired an old glyde spring damper unit from x-fusion shocks with a 25 mm travel on the damper- the coil that came with it has S750*38 printed on it...hence my question is, What is the spring rate on such a spring and what do these figures explain about the spring?? Is it 750 N to compress it 1.5" and then spring rate being 500N/inch or is it 750 N/inch and 38mm coil diameter....please help!!!??

[Rog]

Hi,

I just acquired an old glyde spring damper unit from x-fusion shocks with a 25 mm travel on the damper- the coil that came with it has S750*38 printed on it...hence my question is, What is the spring rate on such a spring and what do these figures explain about the spring?? Is it 750 N to compress it 1.5" and then spring rate being 500N/inch or is it 750 N/inch and 38mm coil diameter....please help!!!??

[exFSAE]

Best thing to do regardless is to "dyno" the springs. Put em on a tensile test machine. Compress em. See where they stack up. I've seen actual spring rates deviate from stamped ones by 10-15%.

[Rog]

Will a normal tensile testing unit suffice? u mentioned a 'dyno'. we have a unit which resembles a dyno which some graduates are using for torque testing etc. is this of any use to me..?

[Rog]

thanks by the way for getting back to me so quickly.

[fade]

measure load and displacement to get the rate