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| Brand Name: | viiplus Self-lubricating composite bearing |
| Model Number: | High performance pom oil-free self-lubricating bearings |
| MOQ: | negotiate |
| Price: | negotiate |
| Payment Terms: | L/C, T/T, Western Union |
| Supply Ability: | L/C, T/T, Western Union |
These bearings are constructed from a polymer material reinforced with bronze powder, which enhances their strength, wear resistance, and load-bearing capacity. Below is a detailed overview of their features, applications, and specifications:
Key Features
Material Composition:
The bearings are made of steel + bronze powder + POM (Polyoxymethylene). The bronze powder reinforcement improves strength and wear resistance, while the POM layer provides self-lubricating properties179.
Self-Lubricating:
The POM material ensures the bearings operate without the need for external lubrication, reducing maintenance requirements and downtime19.
Durability and Wear Resistance:
The bronze powder enhances the material's ability to withstand high loads and speeds, making it suitable for demanding industrial environments17.
Customizable Sizes:
The bearings are available in a wide range of standard and customized sizes, ensuring compatibility with various machinery and equipment179.
Low Friction and Smooth Operation:
The plain bearing design ensures low friction and efficient power transmission, contributing to smooth operation16.
Technical Specifications
Working Temperature: -40°C to +120°C914.
Load Capacity:
Static: Up to 250 N/mm²
Dynamic: Up to 140 N/mm²914.
Hardness: >270 HB9.
Lubrication: POM self-lubricating, oil, or grease17.
Surface Treatment: Copper-plating or tin-plating for enhanced corrosion resistance17.
Advantages
Maintenance-Free: The self-lubricating design eliminates the need for regular lubrication19.
Cost-Effective: Reduces operational costs and downtime914.
High Performance: Suitable for high-load, high-speed, and low-speed applications19.
Environmental Compliance: Lead-free and meets international standards like DIN 1494 and ISO 35471314.
Manufacturer and Supplier
Brand: viiplus Self-lubricating Composite Bearing17.
Certifications: RHOS, DIN 1494, ISO 3547114.
Packaging: Export carton, wood pallet, or wooden case17.
Delivery Time: 5-25 working days17.
For more details or to request a quote, you can contact us.
This series is a reliable choice for industries seeking durable, low-maintenance, and high-performance bearing solutions.
Constructed from a polymer material reinforced with bronze powder, these bearings offer exceptional durability and wear resistance. The bronze powder reinforcement enhances the material's strength and load-bearing capacity, making it suitable for use in high-load and high-speed applications.
The plain bearing design allows for low-friction rotation and efficient power transmission. The polymer material also exhibits good self-lubricating properties, reducing the need for external lubrication and maintenance.
The POM-based sleeve bearing, also called POM bushing, boundary lubricated bearing, oil-free bearing, dry bearing, POM bearing and POM coated dry sleeve. It has a similar material structure with dowels. The difference lies in the POM coated layer.
Yellow POM composite bushing is a standard item of our company. This type self-lubricating bearing has same material structure with other POM bushing.
1. POM 0.3~0.5mm.
2. Porous bronze 0.2~0.3mm.
3. Steel backing 0.4~2.2mm.
4. Copper plating 0.008mm.
| Specifications for POM Split Bush Bearing - POM Type | |
| Reference | POM bush |
| Brand | Viiplus |
| Inside Diameter | 20mm |
| Outside Diameter | 23mm |
| Width | 15mm |
| Type | Bearing |
| Weight (KG) | 0.0001 |
| Load capacity | 70N/mm2 | |
| Friction value | 0.05 to 0.25 µ | |
| Temperature | -40 to +130 [ °C ] | |
| Max. Pv (oil condition) | 22N/mm2 .m/s | |
| Max. speed | 2.5m/s | |
1.Sliding layer POM with or without lubricant indents for machining
2.Porous Bronze Sinter
3.Steel Back
| OPERATING PERFORMANCE | |
| Dry | Poor |
| Oil-lubricated | Good |
| Grease lubricated | Very Good |
| Water lubricated | Poor |
| Process fluid lubricated | Poor |
| GENERAL | Unit | Value | |
| Maximum load, p |
Static |
N/mm2 |
140 140 |
| Operating temperature |
Min |
°C |
- 40 130 |
| Coefficient of linear thermal expansion | Parallel to the surface | 10-6/K | 11 |
| Normal to the surface | 10-6/K | 29 |
| GREASE LUBRICATED | ||
| Maximum sliding speed, U | m/s | 2.5 |
| Maximum pU factor | N/mm2 x m/s | 2.8 |
| Coefficient of friction | 0.06 – 0.12 |
| RECOMMENDATIONS | |||
| Shaft surface roughness, Ra | µm | ≤ 0.4 | |
| Shaft surface hardness |
Normal |
HB |
> 200 > 350 |
Bearing forms available in standard dimensions
Metric bearings and imperial bushings made to order: standard bushing forms in special dimensions, half-bushings, special shapes obtained by stamping, bearings with locating notches, lubricant holes and machined grooves, customized bushing designs
english