
High Performance Disc Springs Manufactured under strict quality control to conform to DIN 2093 load characteristics, disc springs in the SPEC range are for arduous applications which require high resistance to fatigue. Stress calculations conform to DIN 2092. Material Group 1 Springs are manufactured from high carbon steel strip to German specification CK67 to BS 1449 part 1 CS70 (1972) and American specification AISI 1070 with material thickness less than 1 mm. Group 2 springs are manufactured from alloy steel conforming to Euronorm and German specification 50 Cr V4 and American specification AISI 6150, having a material thickness from 1 mm up to and including 6 mm. Manufacture Group 1 springs are not machined but have edges rounded.
Group 2 springs are machined on the inside and outside diameters with all edges rounded.
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