Housing Shaft for Knee Surgery

The stainless steel shaft pictured here, used in orthopedic knee surgery, represents a typical project we have in-shop on a continual basis.

To fabricate this part, we utilized our 9-axis Swiss turning center, which gave us the ability to perform multiple operations simultaneously for the complex contours and intricately angled radii. Our combination of high-tech equipment and master machinists enabled us to maintain dimensional tolerances of ± 0.025″ and angular tolerances of ± 0.5° on this part, which featured dimensions of 2.7559″ in length and 1.0630″ in height. Additional operations consisted of heat treating and passivating for strength and corrosion resistance, as well as grinding and bead blasting to achieve the desired surface finish.

Our in-depth knowledge of the industry and advanced manufacturing and inspection technologies enabled us to cost-effectively fabricate the 30 units in this order in less than 4 weeks.

Technical Specifications

Product Name
Main Housing Shaft
Capabilities Applied/Processes
Swiss turning, milling with conventional EDM
Equipment Used to Manufacture Part
9-Axis turning, 4-axis milling, Sinker EDM
Tightest Tolerances
+/-0.0002 to +/-0.0005
Material Used
17-4, 455 Stainless Steel and/or Titanium
Material Finish
16 - 32 micro inch
In process testing/ inspecting performed
CMM, Mic, and Vision System
Industry for Use
100, 500, 1000, 5000
Delivery/Turnaround Time
8 - 10 weeks.
Delivery Location
Indiana, Wisconsin, Minnesota
Standards Met
ISO 9001: 2015 and ISO 13485:2016

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