Precision CNC Machined Worm Gear in SUS316 Stainless Steel with Passivation Finish for Medical Equipment

This precision CNC machined worm gear is purpose-engineered for medical device and surgical equipment applications where precise motion transmission, exceptional corrosion resistance, and stringent hygienic surface standards are simultaneously required.

Manufactured from SUS316 stainless steel, the molybdenum-enhanced alloy composition delivers superior resistance to chloride-induced pitting and crevice corrosion compared to standard SUS304 — making it the preferred material choice for medical motion control components exposed to:

• Bodily fluids
• Saline solutions
• Sterilization chemicals
• Repeated autoclave cycles

• Multi-start helical thread profile precision-ground to exacting tooth geometry tolerances
• Smooth, low-backlash power transmission for accurate angular positioning
• Consistent meshing performance with mating worm wheel assemblies
• Keyed central bore with precision-reamed inner diameter for accurate shaft engagement
• Reliable torque transmission without rotational slip

Following machining, each component undergoes rigorous passivation treatment using a controlled citric or nitric acid process, dissolving residual free iron and surface contaminants while significantly reinforcing the natural chromium oxide passive layer inherent to SUS316.