Premium Quality Plastic Bushing
| 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 |
| 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 |
| 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 | ||
| 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 |
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.
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
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
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
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.
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.
The versatility of PLASTIC EP FLANGE BUSHING 20X23X30X1.5X7 makes them ideal for numerous applications, including:
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.
Our professional team is ready to assist with your inquiry for this Flanged EP Linear Bearing – Self-Lubricating Plastic Bushing.
Contact UsAll our products are manufactured according to ISO 9001 standards.
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