The meshing of spur gears results in rolling contacts producing high efficiency of about 95 - 98%. Secondary operations that can be performed include opening the bore, adding of keyways, adding of tapped holes, or reduction of the hub diameter.
KHK Spur Gears are available in a wide variety of materials including structural carbon steel S45C, structural alloy steels SCM440 (medium carbon steel) and SCM415 (low carbon steel), gray cast iron FC200, stainless steels SUS303 and SUS304, nonferrous metal C3604 (free cutting brass), engineering plastics MC901 and MC602ST. Materials conform to U.S. standards including AISI, SAE, ASTM, and AGMA.
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