UHMWPE/Nylon Custom CNC Self-Lubricating

UHMWPE / Nylon CNC-Machined Bushing & Sleeve

Name: UHMWPE / Nylon CNC-Machined Bushing & Sleeve
Brand: Jiasheng Plastics
SKU: JS-CNC-BSH-001
Availability: InStock
Rating: 4.9 (42 reviews)

Precision-machined plastic bearings and protective sleeves engineered for extreme wear resistance, zero maintenance, and high impact environments in marine, dredging, and industrial machinery.

OD Range: 10 – 1000 mm
ID Range: 6 – 980 mm
Length: Up to 3000 mm
Materials: UHMWPE, PA6, PA66, POM, HDPE
Friction Coeff.: 0.08 – 0.15 (Self-Lubricating)
Service Temp.: −200 to +90 °C
Tolerance: ±0.05 mm to ±0.1 mm

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Product Description

Jiasheng Plastics is a leading manufacturer of custom-machined UHMWPE and Nylon bushings, providing high-performance alternatives to traditional bronze and steel bearings. Our CNC-machined components are engineered using medical-grade or industrial-grade engineering plastics that offer a unique combination of low friction and high impact strength. Unlike metal bearings that require constant lubrication and are prone to corrosion, our plastic bushings are inherently self-lubricating. The integrated lubricants within the polymer matrix ensure a smooth operation throughout the part's lifecycle, significantly reducing downtime and maintenance costs for heavy-duty industrial equipment.

Our advanced CNC machining center in Dezhou is equipped with high-precision lathes and multi-axis milling machines specifically calibrated for engineering plastics. We specialize in producing large-diameter sleeves and complex-geometry bushings for the marine and dredging industries. UHMWPE (Ultra-High Molecular Weight Polyethylene) is particularly valued in these sectors due to its zero water absorption and exceptional resistance to salt-water corrosion. Whether you require standard cylindrical bushings or complex flanged sleeves with internal oil grooves, our technical team ensures every part meets your exact specifications and tolerances.

The versatility of our materials, including PA6 (Nylon 6) and PA66 (Nylon 66), allows us to cater to high-load and high-temperature environments. Nylon bushings offer excellent mechanical stiffness and are capable of withstanding higher compressive loads than pure polyethylene. By selecting the optimal material—whether it's MOS2-filled Nylon for improved hardness or Borated UHMWPE for radiation shielding—we help our clients maximize the service life of their machinery. Every component undergoes rigorous QC inspection, including 3D coordinate measuring and ultrasonic testing, to guarantee that the final product integrates perfectly into your assembly.

Technical Specifications

Property	Test Method	UHMWPE (PE1000)	Nylon (PA6)
Density	ISO 1183	0.93 – 0.95	1.13 – 1.15
Tensile Strength	ISO 527	22 – 28 MPa	70 – 85 MPa
Flexural Modulus	ISO 178	800 – 1000 MPa	2800 – 3200 MPa
Hardness (Shore D)	ISO 868	62 – 66	78 – 82
Coeff. of Friction	ASTM D1894	0.08 – 0.12	0.25 – 0.35
Water Absorption	ISO 62	< 0.01 %	2.5 – 3.0 %
Service Temp. (Short)	—	+120 °C	+160 °C
Service Temp. (Long)	—	+80 °C	+100 °C
Impact Strength	ISO 179	No Break	6 – 12 kJ/m²
Dielectric Strength	IEC 60243	> 45 kV/mm	> 20 kV/mm

Custom additives like MOS2, Glass Fiber, or Oil-filling can be added to modify these properties. Detailed data sheets are available upon request.

Key Features & Advantages

Self-Lubricating

Integrated solid lubricants eliminate the need for grease. Ideal for submerged or hard-to-reach locations.

Zero Water Absorption

UHMWPE will not swell or degrade when submerged in water, maintaining critical tolerances in marine use.

High Impact Strength

Absorbs heavy shock loads without cracking or deformation, protecting shafts and housing components.

High Precision CNC

Machined to tolerances of ±0.05mm. Smooth surface finishes reduce initial wear during break-in periods.

Chemical Resistance

Impervious to strong acids, alkalis, and organic solvents. Superior performance in dredging and chemical processing.

Lightweight Construction

Up to 7 times lighter than steel, reducing overall equipment weight and simplifying installation procedures.

Industries & Applications

Marine Deck Rollers

Bushing inserts for fairleads and deck machinery to prevent cable wear and ensure smooth rotation.

Dredging Pump Sleeves

Wear-resistant internal sleeves for centrifugal pumps handling abrasive sand and gravel slurries.

Hydroelectric Turbines

Main shaft guide bearings and wicket gate bushings that operate maintenance-free underwater.

Paper & Pulp Mills

Chemical-resistant bushings for agitators, conveyer rollers, and processing equipment.

Conveyor Idler Bearings

Low-friction bearing housings and sleeves for high-speed food and bottling conveyor lines.

Agricultural Machinery

Dust-proof and shock-resistant bushings for harvesters, seeders, and pivot points.

Sizes & Customization

At Jiasheng Plastics, we understand that every industrial application has unique geometric requirements. Our CNC machining capabilities allow us to produce bushings ranging from miniature precision sleeves (10mm OD) to massive industrial bearings (1000mm OD). We utilize state-of-the-art nesting software to maximize material yield from our extruded or molded stock, ensuring competitive pricing for our clients.

Customization goes beyond just dimensions. We can incorporate complex features such as internal spiral oil grooves, external locking flanges, countersunk mounting holes, and split-sleeve designs for easy assembly. We also offer material branding and part number engraving via laser for easy inventory management. All parts are deburred and cleaned before being vacuum-packed to prevent contamination during shipping. Our standard lead time for custom CNC parts is 10-15 business days, with expedited "AOG" service available for critical repair situations.

Frequently Asked Questions

What are the advantages of UHMWPE bushings over metal bearings?

UHMWPE bushings are self-lubricating, meaning they operate without grease or oil, reducing maintenance costs. They offer superior corrosion resistance in marine and chemical environments, high impact strength, and excellent vibration dampening. Additionally, they are significantly lighter and won't gall or seize against metal shafts.

Can you machine bushings to tight tolerances?

Yes, our CNC machining center can achieve tolerances as tight as ±0.05mm depending on the part geometry and material. We use multi-axis CNC lathes and mills to ensure high precision for critical ID/OD dimensions and surface finish, suitable for high-speed industrial applications.

Which material is better for my application: UHMWPE or Nylon?

UHMWPE is ideal for low-speed, high-load applications requiring maximum wear resistance and zero water absorption (like marine rollers). Nylon (PA6/PA66) is preferred for higher temperature environments or applications requiring higher mechanical strength and stiffness, though it does absorb a small amount of moisture.

What is the maximum size bushing you can produce?

We can CNC machine bushings with an outer diameter (OD) up to 1000mm and lengths up to 3000mm. Our facility is equipped with large-scale heavy-duty lathes designed specifically for engineering plastics, allowing us to handle oversized components for dredging and hydroelectric projects.

Do you provide custom CAD drawing services?

Absolutely. If you don't have a finished CAD file, our engineering team can work from your physical samples or hand sketches to create professional technical drawings. We accept .dwg, .dxf, .step, and .igs file formats for direct CNC programming.

How do I get a quote for a custom machined part?

Simply click the 'Request a Free Quote' button or contact us via WhatsApp with your required dimensions (ID, OD, Length), material preference, and quantity. We typically provide a comprehensive formal quotation within 24 hours.

UHMWPE / Nylon CNC-Machined Bushing & Sleeve

Product Description

Technical Specifications