PEEK (Polyketone) and (Polytetrafluoroethylene) oilless bushes are precision components made from a metal-polymer hydrodynamic composite material. This unique material combination offers exceptional performance characteristics in demanding applications where lubrication is limited or not feasible.
The metal-polymer composite structure provides both the strength and durability of metal and the low friction and wear resistance of polymers. The PEEK and components are impregnated or bonded to the metal base, creating a homogeneous and integral bush that can withstand high loads, temperatures, and speeds.
The oilless design of these bushes eliminates the need for external lubrication, reducing maintenance costs and downtime. The hydrodynamic properties of the composite material allow for the formation of a lubricant film between the bush and the mating surface, further reducing friction and wear.
PEEK / oilless bushes are commonly used in applications such as automotive, aerospace, and precision machinery where reliable and long-lasting performance is crucial. They are particularly suitable for applications where traditional oil-lubricated bushings are not feasible due to environmental or operational constraints.
Overall, PEEK / oilless bushes made from metal-polymer hydrodynamic composite material offer a unique solution for demanding applications that require low friction, high wear resistance, and reliable performance without the need for external lubrication.
Self Lubricating Plain Bushing
Modified PEEK with self lubricating additives for applications where chemicals where chemicals may be utilized.Excellent wear in both wet or dry applications. Available with a bronze substrate for use as chemical pump or valve bushings. Extra thick liner allows for slight modifications for shaft misalignment.
Inert polytetrafluoroethelene () Sleeve Bushings Standard on most sizes.A special grease to enhance corrosion protection and extend service life.This sliding bearings solution helps engineer reduce their total maintenance and downtime costs.Metal-Polymer Hydrodynamic Composite Bearings PEEK/ | VSB-30
Material:Carbon Steel + Copper Powder + ( + PEEK)
Typicai applicaton
Work in high temperature condition like high-pressure gear pump, water injection pump, hydraulic motor and spray painting food processing.
composite
plain bearings
Compact and maintenance-free
What is a self-lubricating bearing?
Self-lubricating bearings are divided into composite self-lubricating bearings, solid mosaic self-lubricating bearing shaft, bimetallic materials
Self-lubricating bearings, special materials, self-lubricating bearings, according to different uses and conditions, use a different self-lubricating bearings.
One of the major categories of solid mosaic self-lubricating bearings (referred to as JDB) is a combination of metal bearing characteristics and characteristics of non-oil lubricated bearings, lubricated by the metal matrix to bear the load, the special formula of solid lubricating material.
It is characterized by high load-bearing capacity, impact resistance, high temperature resistance and self-lubricating ability. It is especially suitable for occasions where it is difficult to lubricate and form oil film, such as heavy load, low speed, reciprocating or swinging, and erosion of water and other acid And erosion. The products have been widely used in metallurgy continuous casting machine, rolling equipment, mining machinery, mold, lifting machinery, textile machinery, wind power generation, shipbuilding, steam turbine, turbine, injection molding machine and equipment production line. Wear resistance is double the normal sleeve.
Description
VSB-30
Metal-Polymer
Hydrodynamic Composite Bearings
Steel Bronze Powder with PEEK/ Marginal Bearings, provides maintenance-free operating, Temperature be allowance from -150 until +250°C, operate satisfactorily without lubrication under lieght duty and low speed, high static and dynamic load
Steel + Bronze Powder + PEEK/
Features
1 . VSB-30 provides maintenance-free operation
2 . Operate satisfectorily without lubrication under light duty and low speed
3 . VSB-30 has a high PV capability under high temperature
4 . Temperature allowance is from -150℃-+250℃
5 . Good chemical resistance
6 . High static and dynamic load capacity
7 . No water absorption
8 . Suitable for rotating , oscillating , reciprocating and sliding movement .
Strusture
1.PEEK/ 0.30~0.50mm. It has high wear resistance and low friction even only minute of lubricant are supplied. The bearing surface carries a pattern of circular indents which will be filled with grease on assembly of the bearing.
2.Bronze layer 0.20~0.35mm. A special composition of powdered copper is thermally fused to the steel backing. This contact layer acts as an anchor for the layer and conducts the thermal build up away from the bearing surfaces.
3.Steel backing.Setting the foundation of the bushings, the steel back provides exceptional stability, load carrying and heat dissipation
| Max. load | Static | 250N/mm2 |
| Dynamic | 140N/mm2 |
| | Rotaing oscillating | 60N/mm2 |
| Max. speed | Dry | 5m/s |
| Lubrication | >5m/s |
| Max. PV (Dry) | Short-time | 4.8N/mm2*·m/s |
| Continuous | 3.6N/mm2*·m/s |
| Temp. | -150℃~+250℃ |
| Friction coefficient | 0.03~0.20 |
| Thermal conductivity | 50W (m·k)-1 |
| Coefficient of thermal expansion | 11*10-6k-1 |
Availability
Bearing forms available in standard dimensions
· Cylindrical bushes
· Thrust washers
· Sliding plates
VSB-30 bearings application covers gear pump , ABS system , piston pump , gear motor , machine tools , agricultural machinery and so on . The materials is recommended with initial pre-lubrication at assembly .
Boundary Lubricating Bushings Size
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PEEK / Oilless Bushes Metal - Polymer Hydrodynamic Composite Material Images
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