MITCalc - Torsion Springs
		The calculation is intended for the purposes of geometric and strength designs of spiral cylindrical torsion springs made of wires and rods in circular sections,... http://www.mitcalc.com/download/MITCalcSprTors01.e... - 2.17MB - Download - Screenshot

		MITCalc - Tension Springs
		The calculation is intended for the purposes of geometric and strength designs of helical tension cylindrical springs made of wires and rods of circular sections,... http://www.mitcalc.com/download/MITCalcSprTens01.e... - 2.17MB - Download - Screenshot

		MITCalc - Compression Springs
		The calculation is intended for the purposes of geometric and strength designs of helical compression cylindrical springs made of wires and rods of circular sections,... http://www.mitcalc.com/download/MITCalcSprComp01.e... - 1.99MB - Download - Screenshot