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.
- ASTM A967 standards
- ISO 10993 biocompatibility requirements
- FDA medical device surface standards
| Quality Standard | ISO 13485 certified quality management systems |
|---|---|
| Inspection & Testing | CMM tooth profile inspection, surface roughness verification, passivation integrity testing |
| Documentation | Complete material traceability documentation per production batch |
| Primary Applications | Surgical robotic actuators, infusion pump drive mechanisms, precision medical positioning systems |
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