Name: Precision CNC Machined Plastic Bushings PEEK PTFE POM Sleeves - Dazao Machinery
Brand: Dazao
SKU: 305879594

Description

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Precision Machined Plastic Bushings

Eliminate mechanical play and operational downtime with micron-level polymer precision.

Core Engineering Features:

AConcentricity: ≤0.01mm achieved via single-setup 5-axis machining.

Bore Tolerance: Precision ground to H7 limits for interference fits.

Material Range: PEEK, PTFE, POM-C, Nylon PA66+GF, and UHMWPE.

Compliance: USP Class VI, FDA food contact, and RoHS/REACH certified.

Prototyping: 48-hour rapid dispatch; zero mold or tooling costs.

Quality Assurance: 100% CMM dimensional verification and FAI reports.

Self-Lubricating Plastic Bushings

Engineered Polymer Bushing Solutions: High-Precision CNC Machining

Bridging the gap between raw polymer stock and high-performance mechanical assemblies.

Dazao specializes in high-precision precision machined plastic bushings and sleeves designed for critical industrial applications where injection molding fails to meet tolerance requirements. Unlike molded parts, our CNC plastic machining process eliminates draft angles and parting lines, ensuring a perfectly cylindrical profile. We utilize advanced 5-axis milling and turn-milling centers to process high-performance polymers, maintaining dimensional stability in components ranging from 2mm to 400mm in diameter.

Custom PEEK Bushings CNC Machining

Technical Parameters & Material Performance Data

Data-driven specifications ensuring seamless integration into your mechanical systems.

Parameter	Specification
Machining Process	5-Axis CNC Milling, Precision Turning, Internal Grinding
Available Materials	PEEK (Natural/GF30), PTFE, POM-Acetal, PA66, PETP, PPS
Dimensional Tolerance	Standard: ±0.05mm; Precision: ±0.01mm (Material dependent)
Bore Tolerance	H7, H8, or per specified ISO 286 standards
Surface Roughness	Ra 0.4 - Ra 1.6 μm (Vapor polishing available)
Concentricity	≤0.01mm (OD to ID)
Max Machining Size	Ø 400mm x 600mm
Certifications	ISO 9001:2015, FDA, RoHS, REACH, USP Class VI

Medical Grade Plastic Bushings

Engineering Case Studies: Solving Operational Wear & Compliance Issues

Real-world failure analysis and the precision-driven corrective actions that resolved them.

Correcting Concentricity in Beverage Filling

A client faced premature wear in PTFE bushings due to a 0.08mm concentricity error from multi-setup machining. We re-engineered the process using custom elastic collets to machine the ID, OD, and faces in a single setup. Result: Concentricity stabilized at ≤0.01mm, extending equipment MTBF by 60%.

Eliminating Contamination in Surgical Tools

Medical-grade PEEK bushings failed bio-compatibility tests due to cross-contamination in a standard shop environment. We established a dedicated clean-machining zone using oil-free coolants and ultrasonic alcohol cleaning. Subsequent batches achieved 100% ISO 10993 compliance for surgical instruments.

Preventing Thermal Creep in Metallurgy

Standard Nylon bushings failed at 110°C due to unexpected material creep. We implemented a Material Selection Matrix that identified PEEK as the necessary substrate for the load-temperature profile. We now mandate a 4-point application review (Temp, Load, Velocity, Media) for all orders.

Food Grade PTFE Bushings Manufacturer

Cross-Industry Applications for Specialized Plastic Sleeves

Tailored polymer components for high-stress, regulated, and extreme environments.

Industrial Automation

High-speed conveyor rollers and end-of-arm tooling.

Food & Beverage

FDA-compliant filling valves and bottling line guides.

Medical Devices

Biocompatible PEEK sleeves for surgical instruments.

Pharmaceutical

Chemical-resistant PTFE bushings for lab mixers.

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FAQs

01.What is the minimum order quantity (MOQ) for machined bushings?

Dazao supports low-volume production with an MOQ of 1 unit for prototyping. We specialize in small-to-medium batches (10-1,000 units) where CNC machining is more cost-effective than investing in injection mold tooling.

02.How do you ensure the dimensional stability of plastic bushings during shipping?

We perform stress-relief annealing cycles post-roughing to neutralize internal stresses. For overseas sea freight, we use vacuum-sealed packaging and desiccants to prevent hygroscopic materials like Nylon from swelling.

03.Can you machine bushings to H7 bore tolerances in PEEK?

Yes. For high-performance polymers like PEEK and Acetal (POM), we consistently achieve H7 bore tolerances using precision boring tools and temperature-controlled machining environments to prevent thermal expansion errors.

04.Do you provide material traceability and compliance certifications?

Every shipment includes a Material Certificate of Conformance (CoC). Upon request, we provide full traceability reports, including RoHS, REACH, and FDA food contact compliance documentation for the specific raw material batch used.

05.What surface finish is achievable for self-lubricating plastic bushings?

We typically achieve a surface roughness of Ra 0.8 μm through precision turning. For high-wear applications, we can provide Ra 0.4 μm or better through specialized polishing techniques to reduce the friction coefficient.

06.Can you reverse-engineer a bushing from a physical sample?

Yes. Our engineering team utilizes CMM and 3D scanning to map the geometry of your existing part, providing a detailed CAD drawing (STEP/IGS) for approval before starting CNC production.

Optimize Your Assembly with Precision-Fit Plastic Bushings.
Eliminate mechanical play and premature wear with our H7-tolerance machined components.

Upload your 2D/3D CAD files (STEP, IGS, or PDF) now for a comprehensive DFM evaluation and a formal quotation within 24 hours.

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