The Metal-Polymer Bronze Backed Plain Bearing is a specialized type of bearing designed for applications requiring high load capacity, durability, and low friction. It combines the strength and rigidity of a metal backing, typically bronze, with the non-stick, low-friction properties of Polytetrafluoroethylene () or ptfe.
The bronze backing provides the bearing with excellent load-bearing capacity and dimensional stability, while the lining ensures smooth, wear-resistant operation. The combination of these two materials allows the bearing to handle both radial and axial loads effectively, with minimal friction and wear.
This type of bearing is often used in applications such as machine tools, automotive components, aerospace equipment, and other precision machinery where smooth, reliable operation is critical. The bronze backing also allows for easy installation and removal, as it can be pressed or screwed into place using standard bearing installation methods.
In summary, the Metal-Polymer Bronze Backed Plain Bearing offers a robust and reliable bearing solution for applications requiring high load capacity, low friction, and smooth operation.
PB, PBF, PBF WITHOUT LEAD. lagerbuchse Metal-Polymer Bronze Backed Plain Bearing, Butt Joint
A wide variety of ina bushings options are available to you, bushes, maintenance-free, with bronze backing.
bushing bearing, self lubricating bushing Material Features It is a new type bushing without lead composition which is developed aiming at increasing demands on environmental protection.welcome to ask a quote.
Steel and Steel/Bronze Plain Bearings
Plain bearing and rod end designs that require maintenance with steel/steel and steel/bronze material pairs are easy to maintain, cost effective, and excellently suited to alternating loads. Plain bushes, washers, and strips employ the low-maintenance metal-polymer composite E50. The sliding layer features lubricant pockets, which means that an initial lubrication is sufficient in most cases.
We stand behind the quality of our Cylindrical Bushes in Metal-Polymer Composite Material Bronze Back + Porous Bronze Sinter + + Lead products .
Bushing is of high safety factor,it is particularly suit for the working condition of high temperature and where no oil can be added or wherethe machine must work successively for long time.The bushing is widely used in steel metallurgy industry including sliding ways of successive casting machines,cement grouting pumps and spiraling conveyers for cement.It can also be pressed into a steel housing and work as an assembly;it can also be made as flange type which can move both in radial and axial directions.
Wear plate made from bushing material can be used in sliding part of bridge underprop.It can stand pressure of 130N/mm2 if we use a thicker wear layer and can be substitute of pure plate.
Characteristics
- Very good wear and low friction performance over a wide range of loads, speeds and temperatures in dry running conditions
- Suitable for lubricated applications
- Suitable for linear, oscillating and rotating movements
- Bronze back offers improved corrosion resistance in humid/saline environments
- Approved to standard EN 1337-2 for structural bearings for civil engineering
Material Structure
DUB Coated Bronze Bushing DIN1494(ISO 3547) the size is like Bushing, PAP bushing MU-B series.
1. /Pb composition, anti-abrasion material, which will form a lubricating film during operation.
2. Bronze powder layer, which further strengthen the combination of the bronze plate and layer and transfer the heat more quickly.
3. Bronze plate, bear high load and transfer heat, anti-corrosion.
Technical Data
| Max Load | Static Load | 250N/mm2 | friction coefficient | 0.03~0.20 |
| | Low-speed Rotation | 140N/mm2 | max linear velocity | dry friction | 2m/s |
| | Rotation,Oscillation | 60N/mm2 | | liquid lubrication | >2m/s |
Max PV
(Dry Friction) | intermittent operation | 3.6N/mm2.m/s | Thermal Conductivity | 70W(m.K)-1 |
| | long-time operation | 1.8N/mm2.m/s | Coefficient of thermal expansion | 17x11-6K |
| Operation Temp. | -195℃~＋300℃ | | |
Availability
Bearing forms available in standard dimensions
Bearing forms made to order: standard forms in special dimensions, thrust washers, flanged thrust washers, half-bearings, special shapes obtained by stamping or deep drawing, customized bearing designs
Features
Bushings offer very good wear and low friction performance over a wide range of loads, speeds and temperatures in dry running conditions
Bushing material suitable for lubricated applications
Anti-friction bearing suitable for linear, oscillating and rotating movements.
Microsection
Typical Applications
This bearing bushing material meets the demanding criteria for long life and trouble-free performance with or without lubricant, of high safety factor even.
The bronze backing provides a high corrosion resistance, anti magnetic properties and a good thermal conductivity, The bearings are particularly appropriate for high temperature environment where no oil is efficient and the machine must be under successive long period working condition. The typical applications covered steel metallurgy industry such as bushes for roller grooves of successive casting machines, cement grouting pumps and screw conveyers for cement and so on.
Operating Performance
| Dry | Very Good |
| Oil lubricated | Good |
| Grease lubricated | Fair |
| Water lubricated | Good |
| Process fluid lubricated | Fair |
| RECOMMENDATIONS | | | |
| Shaft surface roughness, Ra | Dry Lubricated | µm µm | 0.3 - 0.5 ≤ 0.05 - 0.4 * |
| Shaft surface hardness | Unhardened acceptable, improved bearing life > 200 HB
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The standard range of bushing is very comprehensive and covers almost every standard size. This range comprises straight and flanged bushings and strips.
Composite bearing standard sizes list for your reference
We are a professional supply on various kind of bearings in China
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Metal-Polymer Bronze Backed Plain Bearing Images
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