MITCalc (Full license without time limitation)
		MITCalc is the multi-language mechanical and technical calculation package. It includes solutions for gear, belt and chain drives, springs, beam, shaft, bolt connection,... http://www.mitcalc.com - Download - Screenshot - Buy It

		MITCalc 3D (Full license without time limitation)
		MITCalc is the multi-language mechanical and technical calculation package. It includes solutions for gear, belt and chain drives, springs, beam, shaft, bolt connection,... http://www.mitcalc.com - Download - Buy It