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KMB10 - KMB300
KEMUSEN
We supply high-quality materials for square ball screw jacks, typically produce the best-performing worm gear ball screw jacks. Below is a summary of the various materials used in ball screw jack construction.

1. Housing is aluminum alloy with anodizing (KMB10, KMB25), nodular cast iron (KMB25 - KMB300). Custom 304 stainless steel
2. Input shaft (worm) is 45# steel, heat treatment process. Custom 304 or 316 stainless steel.
3. Internal wormgear is aluminum bronze.
4. Ball screw is SCM450 alloy steel. Hardness: HRC 58-62.
5. Ball nut is SCM415H alloy steel. Hardness: HRC 58-62.
6. Steel ball is SUJ2 bearing steel. Hardness: HRC 60
7. Bearing is chromium bearing steel. Custom 304 stainless steel.


Note: Ball Screws and Nuts are made from hardened alloy steel with hardened bearing balls carrying the load between nut and screw.