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PLASTIC EP FLANGE BUSHING 20X23X30X1.5X7

Premium Quality Plastic Bushing

DALON FLANGE BUSHING

Product Overview

Product Specifications

Manufacturer DALON
Material COMPOUND FIBER PLASTIC
Type FLANGE BUSHING
Working Temperature ?/td> From - 40°C to + 80°C
Product Code EPF-2023-7
Density (g/cm³) 1.46
HS Code 8483300090
Hardness HRR 108
Static Load (Mpa)
Max Speed (m/s) 3
Max PV (dry) 0.4

Technical Drawings & Dimensions

flanged linear bearing Technical Drawing

Product Dimensions

I.D.(d) 20
I.D. (d1)
O.D. (D) 23
O.D. (D1)
Length (L) 7
Flange Dia. (fd) 30
Flange Thickness (fl) 1.5
General Tolerance E10 r7 js13
Weight(ref)/Gram 0.00
Minimum Order Qty 500
All dimensions in millimeters (mm) unless otherwise specified.

Product Characteristics

Standard Engineering Plastic Bushing Material EP Series
Designation Test Method Unit DALON(DOB-EP)
Density ISO 1183 g/cm³ 1.46
Dynamic friction/steel(dry) 0.05~0.20
Max.PV(dry) N/mm²*m/s 0.4
Mechanical capability
Tensile strength 20?/td> ISO527 N/mm² >40
Compressive strength 20?/td> ISO527 N/mm² >75
E-module ISO527 N/mm² >1300
Max.static pressure of the surface 20?/td> N/mm² >70
Charpy notched impact strength 30?/td> ISO179-2 Kj/m² 3
Hardness Rockwell ISO2039-2 HRR 108
Physical and thermal capability
Continuous work temperature ?/td> -40/80
Short-time work temperature ?/td> -70/+120
Thermal conductivity ASTME1461 W/m.k 0.2
Linear coef.Of thermal expansion ASTMD696 K-1.10-5 10
Moisture absorption RH50/23?/td> ASTMD570 % 0.2
Electrically conductivity capability
Volume resistivity IEC60093 Ω.cm >1012
Surface resistivity IEC60093 Ω >1015
Flammability UL94 HB
Color Dark Grey
DALON Filament Wound Plastic Bushing Material Series
Designation Unit B-32 B-31 B-21 B-06 B-03 B-01
Basic type Higher Load Higher Load High Load Standard General Economic
Static load Mpa 485 465 240 240 240 150
Dynamic load Mpa 210 190 160 150 100 30
Density g/cm³ 1.9 1.9 1.9 1.9 1.9 1.9
Max.speed M/s 0.5 0.5 0.2 0.2 0.2 0.1
Max.PV Mpa*m/s 2.5 2.2 2 2 1.8 1.6
Coefficient of friction - 0.03-0.12 0.03-0.12 0.03-0.12 0.03-0.12 0.03-0.12 0.15-0.25
Working temp. °C ±196 ±196 ±180 ±180 ±150 ±150
Short-time work temp. °C -269~+269 -269~+269 -196~230 -196~+230 -196~+196 -196~+160
Radial compressive strength Mpa 550 520 500 500 500 200
Hardness HRM 95 95 95 95 95 85
25-150°C Linear thermal expansion factor Um/m°C 13×10-6 13×10-6 13×10-6 13×10-6 13×10-6 13×10-6
Color - Black Black Black Black Black Black

Product Description

Flanged EP Linear Bearing – Self-Lubricating Plastic Bushing

PLASTIC EP FLANGE BUSHING 20X23X30X1.5X7 Additional image 1

DALON’s PLASTIC EP FLANGE BUSHING 20×23×30×1.5×7 is a self-lubricating flanged linear bearingengineered for light-to-medium-duty linear motion applications. Manufactured from engineering-grade EP (Engineering Plastic), this bushing combines high wear resistance, low friction, and excellent dimensional stability—making it an optimal alternative to traditional metal bearings in dry or marginally lubricated environments.

The flange adds axial positioning capability, simplifying assembly and ensuring secure placement in housings or guide rails. With a precise inner diameter of 20 mm, outer diameter of 23 mm, flange diameter of 30 mm, flange thickness of 1.5 mm, and total length of 7 mm, this compact bushing is suitable for constrained mechanical systems, robotic joints, lab automation, and low-noise linear actuators.

Compared with sintered bronze or metal bushings, plastic EP bushings provide silent operation, are corrosion-resistant, and do not require oiling or maintenance. These properties make them ideal for use in environments where cleanliness, weight reduction, or moisture exposure is a concern.


Key Features

  • Material: EP (Engineering Plastic), self-lubricating polymer

  • Size: ID 20 mm × OD 23 mm × Flange OD 30 mm × Flange Thickness 1.5 mm × Total Length 7 mm

  • Low Friction: Ensures smooth motion without external lubrication

  • Lightweight: Ideal for weight-sensitive assemblies and moving parts

  • Non-Corrosive: Suitable for moist or chemically exposed environments

  • Flanged Design: Simplifies positioning, prevents axial movement

  • Noise Reduction: Ideal for quiet operating conditions


Applications

  • Linear guides in 3D printers, CNC machines, and automation systems

  • Non-metallic bearing replacement in lab and medical equipment

  • Packaging machinery and food-grade conveyor systems

  • Lightweight assemblies in drones or robotic end-effectors

  • Moisture-prone environments such as marine or outdoor mechanisms


Why Choose DALON

DALON delivers performance-optimized plastic bushings using advanced polymer technologies to meet the needs of precision motion, noise-sensitive, and maintenance-free operations. With ISO 9001:2015 certification and over 20 years of bushing manufacturing expertise, we offer reliable alternatives to conventional metal bearings.

Our advantages include:

  • Custom ID, OD, flange dimensions, and groove features

  • Broad material portfolio: EP, PA, POM, PTFE-blended plastics

  • Rapid prototyping and mold development within 35–40 days

  • Shorter lead time (under 30 days) for standard flanged bushings

  • Engineering support for load, speed, and tolerance matching


FAQ – Frequently Asked Questions

Q1: What is a flanged linear bearing used for?

It provides linear motion with added flange support to prevent axial displacement and simplifies installation without additional retaining elements.

Q2: Is lubrication required for this plastic EP bushing?

No. The EP material is self-lubricating and designed for dry-running applications.

Q3: Can it replace a metal bearing in sliding applications?

Yes. In many low-load, low-speed conditions, EP bushings outperform metals in noise, corrosion resistance, and maintenance.

Q4: How does this bushing handle misalignment?

It accommodates slight misalignments due to its polymer flexibility and tolerance absorption characteristics.

Q5: Is this bushing suitable for outdoor or wet conditions?

Yes. It is corrosion-resistant and performs well in moist, marine, or chemical-exposed environments.

Q6: Can DALON customize this bearing for other shaft sizes?

Absolutely. Customizations are available for dimensions, flange shape, grooves, and material selection. Contact DALON for specific requirements.


What Do People Also Ask – Answered

Q: What is the difference between flanged and sleeve linear bushings?

Flanged bushings have a collar or flange to provide axial location and simplify mounting, while sleeve bushings are plain cylindrical and require external retaining methods.

Q: Are plastic linear bushings durable?

Yes. When matched with appropriate load and speed limits, self-lubricating plastic bushings offer long service life and are resistant to wear, moisture, and vibration.

Q: Can I use a flanged plastic bushing in vertical shafts?

Yes. The flange helps support axial loads and positioning in both horizontal and vertical applications.

Additional image 2
Flanged linear bearing in EP plastic, 20×23×30×1.5×7 – lightweight, self-lubricating, corrosion-resistant solution for smooth, quiet linear motion.

Applications & Industries

Engineering Plastic Bushing Applications

DALON Plastic Bushing Applications

The versatility of PLASTIC EP FLANGE BUSHING 20X23X30X1.5X7 makes them ideal for numerous applications, including:

Key Industries

  • Automotive Industry - Enhancing performance in vehicle components
  • Office Automation (OA) - Improving machinery efficiency
  • Agricultural Machinery - Providing durability in harsh environments
  • Textile Industry - Cost-effective replacement for metal bearings

Technical Specifications

PV Value

  • ?Maximum dry condition PV: 0.4N/mm*m/s
  • ?Optimal for low load & speed rotation
  • ?1-3x speed increase with lubrication

Load Capacity

  • ?Continuous operating temperature: 80°C
  • ?Average surface pressure: 40N/mm

Temperature Range

  • ?Short-term max (2 hours): 120°C
  • ?Optimal wear performance: 50°C

General Applications

Automotive Industry:
- Used in steering columns, pedal assemblies, door hinges, and suspension systems where durability and noise reduction are crucial.
Aerospace and Defense:
- Applied in control systems, actuators, and landing gear assemblies, where high strength-to-weight ratio and corrosion resistance are essential.
Industrial Machinery:
- Ideal for use in conveyors, assembly lines, and heavy-load equipment, offering low maintenance and high performance in dirty or abrasive environments.
Agricultural Equipment:
- Used in tractors, harvesters, and irrigation systems, where exposure to dust, soil, and chemicals demands robust and durable bearings.

Additional Applications

Marine Applications:
- Suitable for rudder assemblies, winches, and pulley systems, benefiting from corrosion resistance in salty and humid environments.
Energy Sector:
- Applied in wind turbines and solar panel tracking systems, where they withstand variable loads and harsh weather conditions.
Food and Beverage Industry:
- Utilized in processing and packaging machinery, where non-toxic, clean, and maintenance-free components are required.
Medical Devices:
- Used in medical equipment and devices, where precision, cleanliness, and reliability are paramount.

Why Choose PLASTIC EP FLANGE BUSHING 20X23X30X1.5X7?

PLASTIC EP FLANGE BUSHING 20X23X30X1.5X7 are designed for environments where traditional lubrication is impractical or impossible. They offer outstanding performance, durability, and cost savings, making them the preferred choice for various industries. Experience the reliability and efficiency of PLASTIC EP FLANGE BUSHING 20X23X30X1.5X7, tailored to meet the demands of your specific applications.

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