Custom CNC Machined Stainless Steel Locking Disk Component – Non-Involute Tooth Profile with Central Boss, Through-Hole and Threaded Mounting Holes for Shaft Assembly

This custom CNC-machined stainless steel mechanical component is designed for secure shaft connection, mechanical positioning, or rotational engagement in industrial machinery and equipment. The part features a non-standard gear-like round base with uniformly spaced block-shaped teeth along its outer edge, providing enhanced gripping, locking, or anti-slip functionality.

Rising from the center of the disk is a cylindrical boss, containing a through-hole for shaft insertion.

The boss sidewall is tapped with threaded holes, allowing the part to be securely fastened to a shaft or mating component using screws or set bolts.

This unique hybrid design supports mechanical engagement via both form-fitting (teeth) and fastening (screws), making it ideal for high-vibration, torque-bearing, or indexing applications.

Key Features

• Material: Corrosion-resistant stainless steel (e.g., SS304, SS316, or custom spec)

• Manufacturing Method: Precision CNC machining – turning, milling, drilling, and tapping

• Disk Base:

  • Round flange with multiple raised, block-like teeth evenly spaced around the perimeter

  • Not involute gear teeth, but custom-profile blocks for unique mechanical mating or positioning

  • Teeth improve grip, indexing, or rotational alignment with mating parts

• Central Boss:

  • Cylindrical protrusion extending vertically from the disk center

  • Includes a centered through-hole to accommodate a shaft, axle, or spindle

  • Threaded holes on the boss sidewall (radial direction) allow for screw clamping or pin locking to secure the part to the shaft

• Surface Finish:

  • Machined, deburred, and optionally passivated

  • Optional finishes: brushed, bead blasted, or electropolished

Typical Applications

This component is commonly used in:

• Custom couplings and drive adapters

• Indexing or rotational alignment fixtures

• Mechanical locking mechanisms

• Automated equipment with modular rotational parts

• Agricultural or construction equipment

• Robotic arms or rotating platforms

The non-standard tooth profile offers a distinctive balance of form-fit locking and design versatility, especially where traditional gears or splines are unsuitable.

Manufacturing Capabilities

We offer OEM CNC machining services for complex metal components, specializing in stainless steel parts with both functional and aesthetic requirements.

➤ CNC Machining Capabilities:

• 3/4/5-axis machining

• Tolerances up to ±0.01 mm

• Precise milling of block teeth and cylindrical bosses

• CNC drilling and tapping for side-threaded holes

➤ Materials:

• SS304, SS316, 17-4PH, 420, and other stainless steel grades

• Also available in aluminum, titanium, tool steel (for similar designs)

➤ Surface Treatment:

• Passivation for corrosion resistance

• Bead blasting for matte finish

• Electropolishing for medical-grade or food-grade finish

• Custom coatings (black oxide, PVD) available upon request

Quality Control & Inspection

We follow strict ISO 9001:2015 quality protocols, including:

• CMM inspection of critical dimensions (e.g., boss diameter, hole alignment, thread size)

• Profile inspection of the block teeth array

• Thread gauge testing for tapped holes

• Optional: hardness testing, surface roughness measurement, material certification

Customization Options

This component can be fully customized to fit your mechanical or design requirements:

• Disk diameter / thickness

• Number and size of outer teeth

• Boss height and diameter

• Through-hole size and tolerance

• Threaded hole number, size, orientation

• Material grade, surface finish, and coating

• Optional: keyway slots, set screw holes, alignment marks

Accepted file formats:

• 2D technical drawings (PDF, DWG)

• 3D CAD models (STEP, IGS, STL)

• Or send a sample for reverse engineering

Why Choose Us

• 20+ years of expertise in custom mechanical parts & assemblies

• Fast lead time for prototypes and mass production

• Deep experience in stainless steel machining & thread handling

• One-stop support from design-for-manufacture (DFM) to final quality control & export

Contact Us

Looking for a reliable manufacturer for your custom stainless steel mechanical connector or locking disk?

Get in touch today to:

• Send your drawings or models for a quick quote

• Request a material or surface finish recommendation

• Get a sample or small-batch run for testing

• Discuss end-use application and mechanical requirements

Let us help you manufacture parts that lock, align, and perform with confidence.