Custom 440C Stainless Steel Precision Cam Shaft CNC Machining

Custom 440C Stainless Steel Precision Cam Shaft

JG manufactures custom 440C stainless steel precision cam shafts for medical devices, automation equipment, analytical instruments and other demanding mechanical assemblies. Each component is produced to the customer drawing using controlled CNC turning, precision cross-hole drilling and counterbore machining.

Engineering Challenge

The critical feature of this dual-head cam shaft is the angular relationship between multiple cross holes. Incorrect orientation can cause assembly interference, timing errors or unstable motion. JG verifies the hole position and angular relationship by Coordinate Measuring Machine (CMM), providing objective inspection data instead of relying only on manual gauges.

Heat Treatment and Dimensional Stability

AISI 440C stainless steel is heat treated to 50–57 HRC for hardness, wear resistance and service life. Machining allowances and process sequence are controlled to reduce distortion after heat treatment and to maintain concentricity, straightness and functional fit. Final hardness is verified before shipment.

Manufacturing Process

• CNC turning of shaft diameters and profiles
• Precision cross-hole drilling
• Counterbore machining
• Chamfering and edge preparation
• Heat treatment to 50–57 HRC
• Deburring of internal and external edges
• CMM inspection of critical dimensions and hole orientation
• Final cleaning, visual inspection and export packaging

Quality Requirements

Every custom 440C cam shaft is inspected for drawing dimensions, hole location, angular orientation, hardness and surface condition. Finished parts must be free from burrs, scratches, stains and machining residue. An inspection report is supplied with every batch. Material certificates, traceability records and RoHS documentation are available when required.

Product Features

• Premium AISI 440C stainless steel
• Heat treated to 50–57 HRC
• CMM-verified cross-hole angular position
• Burr-free cross holes and counterbores
• Controlled dimensional stability after heat treatment
• Passivated, clean precision-machined surface
• Prototype, small-batch and production support
• OEM manufacturing according to customer drawings

Applications

This precision cam shaft is suitable for medical equipment, laboratory instruments, motion-control systems, industrial automation, semiconductor equipment, analytical instruments and custom mechanical assemblies.

Why JG

JG combines more than 20 years of OEM manufacturing experience with CNC turning, machining centers, heat-treatment coordination and precision inspection. Our IATF 16949 quality system supports material control, process traceability, inspection documentation and stable repeat production. Send your 2D drawing and 3D model for an engineering review and quotation.