Product Overview
This threaded plastic flange is CNC-machined from black POM (polyacetal / Delrin®), a commonly used engineering thermoplastic with stable mechanical properties and low friction characteristics.
The component is designed for positioning and fastening applications and features a Φ116 mm inner bore, 15 mm overall thickness, and a machined inner stop ring for alignment and sealing. A symmetrical layout with multiple mounting holes allows straightforward installation into mechanical assemblies.
Key Specifications
| Parameter | Value |
|---|---|
| Material | Black POM (Polyacetal / Delrin®) |
| Overall Thickness | 15 mm |
| Inner Bore Diameter | Φ116 mm |
| Inner Lip (Stop Ring) | Machined locating and sealing feature |
| Threaded Holes | 4 × M5 |
| Clearance Holes | 4 × Φ5.2 mm |
| Mounting Ear Holes | 2 × Φ10 mm |
| Surface Finish | As-machined, matte black |
Material Characteristics – Black POM
Provides adequate strength and rigidity for structural plastic components
Low moisture absorption helps maintain dimensional consistency
Suitable for sliding or rotating contact due to low friction behavior
Resistant to common oils, fuels, and neutral chemicals
Black material reduces surface reflectivity in light-sensitive assemblies
Design Features
Inner Bore with Stop Ring: The Φ116 mm bore includes a concentric machined lip that acts as a mechanical stop and alignment reference.
Threaded and Clearance Holes:
4 × M5 threaded holes for component fastening
4 × Φ5.2 mm clearance holes for auxiliary fasteners or positioning pins
Mounting Ears: Two symmetrical mounting ears with Φ10 mm through-holes allow the flange to be fixed to a base structure.
Geometry: The design supports load distribution while keeping material usage reasonable.
Typical Applications
Optical and imaging equipment housings
Automation and motion system components
Laboratory and semiconductor equipment structures
Food and medical processing machinery (material grade dependent)
General industrial fixtures and mounting interfaces
Quality Assurance
Parts are produced by CNC machining with inspection of key dimensions such as bore diameter, concentricity, and hole location. Material is sourced from standard industrial POM suppliers to ensure consistency between production batches.
FAQ
Q: Do you provide First Article Inspection (FAI) for this threaded plastic flange?
A: Yes. First Article Inspection can be provided upon request. The FAI report includes verification of critical dimensions such as inner bore diameter, overall thickness, and hole positions.
Q: What inspection standards are used for FAI?
A: FAI is typically performed according to the customer's drawing requirements. If not specified, inspection follows standard dimensional verification practices based on CNC machining tolerances.
Q: Which dimensions are checked during FAI?
A: Key characteristics include the Φ116 mm inner bore, stop ring geometry, M5 threaded hole location, clearance hole diameters, and concentricity between bore and outer features.
Q: Can FAI be supplied with measurement records and images?
A: Yes. Measurement data, inspection reports, and part photos can be included to support approval before mass production.
Q: Is FAI required again for repeat orders?
A: FAI is normally required only for the first production run or after design, material, or process changes. Repeat orders can follow the approved reference sample.
Hot Tags: threaded plastic flange, China threaded plastic flange manufacturers, suppliers, factory, Nylon O Ring Seals, Plastic Dust Caps for Connectors, Plastic Snap Connector, Plastic Straight Connector, Tip Mount Cover, Washer For Wave
