The 30mm self-lubricating bearing with sintered bronze is a
high-performance bearing designed for applications requiring
superior wear resistance and low friction. The sintered bronze base
material offers excellent strength and durability, while the
(Polytetrafluoroethylene) coating provides self-lubricating
properties that eliminate the need for external lubrication. This
combination results in a bearing that can operate smoothly and
reliably over extended periods of time, even in harsh environments.
The 30mm diameter of this bearing makes it suitable for a wide
range of applications, including machinery, equipment, and other
industrial uses. The sintered bronze construction ensures that the
bearing can withstand heavy loads and high speeds, while the
coating reduces friction and wear, extending the bearing's
lifespan.
Overall, the 30mm self-lubricating bearing with sintered bronze is
a reliable and efficient choice for applications requiring superior
wear resistance and low friction.
Buchsen 44-40 30mm
bushing
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Solutions.
Bushings, or plain bearings, operate with sliding motion between
the moving surfaces. Bushings are selected based on the rotating
speed and the applied load. Most bushings do not require additional
lubrication to operate.
Self-lubricating bronze composite bushings consist of a layer
sintered on a brown strip. These bushings are corrosion resistant
and suitable for high temperature applications that can be made without the use of oil requiring
long duty cycles.
This type of self-lubricating bearing is used in the radial or
axial direction, especially in the steel and cement industries.
Self-lubricating -bronze composite bushings can be used in panels
as bridge supports, since the thick sliding layer on the inner
surface can withstand loads of up to 140 N / mm².
Sintered Bronze Composite Material - maintenance-free
Plain & Self-Lubricating Bearings(Bushing Material:Sintered Bronze
with )
Bronze backed with bronze powder dry bushing materail layer
• Sliding layer + Lead
• Porous Bronze Sinter
• Bronze Backing
1. / Pb 0.01 ~ 0.03mm mixture, provides an excellent initial
transfer film, which effectively covers the contact surface of the
socket assembly, forming an oxide type solid lubricant film.
2.sintered bronze powder 0.20-0.35mm, provides max. thermal
conductivity away from the bushing surface, also serves as a
reservoir for the -lead mixture.
3.Bronze bracket, gives exceptionally high load capacity, excellent
heat dissipation. Have very good corrosion resistance.
Bronze+Sintered bronze+ material
- Metal-Polymer Composite Material
- Bronze Back + Porous Bronze Sinter + + Lead
| Support meterail | bronze tin-plated0.7-2.3mm |
| Intermediate layer | Sintered bronze0.2-0.3mm |
| Sliding layer | 0.01-0.03mm
|
Bronze Backed Bushing Technical Date
| Resilience | 140 N/mm² |
| Temperature Range | -195°C +300°C |
| Sliding Speed Limit | 5 m/s |
| Friction Coefficient | 0.03 - 0.18 |
| Limit Value (Dry) | 4.3 N/mm² × m/s |
| Limit Value (Oil) | 50 N/mm² × m/s |
Metal-Polymer Bronze Backed Plain Bearing Bushing Characteristics
Composite Plain Bearing Dry type composite plain bearings are
mainly used in bearing assemblies where heavy loads have to be
carried and where rotational or oscillatory movements are
relatively slow.
- 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
Availability
Self-lubricating Bearing forms available in standard dimensions
- Cylindrical bushes
- Flanged bushes
- Sliding plates
- Thrust washer
Self-lubricating 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.
Operating Performance
| OPERATING PERFORMANCE |
| Dry | Very Good |
| Oil lubricated | Good |
| Grease lubricated | Fair |
| Water lubricated | Good |
| Process fluid lubricated | Fair |
Plain Bearing Properties
| GENERAL | | Unit | Value |
| Maximum load, p | Static | N/mm2 | 140 |
| Dynamic | N/mm2 | 140 |
| Operating temperature | Min | °C | -200 |
| Max | °C | 280 |
| Coefficient of linear thermal expansion | Parallel to the surface | 10-6/K | 18 |
| Normal to the surface | | |
| 10-6/K | 36 |
| DRY | | |
| Maximum sliding speed, U | m/s | 2.5 |
| Maximum pU factor | N/mm2 x m/s | 1.8 |
| Coefficient of friction | | 0.02 - 0.25 * |
| OIL LUBRICATED | | |
| Maximum sliding speed, U | m/s | 5 |
| Maximum pU factor | N/mm2 x m/s | 5 |
| Coefficient of friction | | 0.02 - 0.12 |
| RECOMMENDATIONS | | | |
| Shaft surface roughness, Ra | Dry | µm | 0.3 - 0.5 |
| Lubricated | µm | ≤ 0.05 - 0.4 * |
| Shaft surface hardness | Unhardened acceptable, improved bearing life > 200 HB | |
* Depending on operating conditions
Application areas
This type of bearing is used radially or axially, particularly in
the steel and cement industries.
Industrial: agricultural equipment, construction equipment, material handling
equipment, forming machines - metal, plastic and rubber; office
equipment and scientific equipment, packaging equipment, pneumatic
and hydraulic equipment cylinders, pumps and motors, railways and
tramways, textile machines, valves, etc.
Other: marine and offshore equipment, other applications in water or in
outdoor environments
Bronze Backed Bushing Typical Applications
It can meet the demanding criteria of long life and trouble-free
performance with or without lubricant, especially for high chemical
resistance requirements.
The Bronze Backed bushing is widely used in steel metallurgy in
applications such as roller groove bushings of later casting
machines, concrete injection pumps and screw conveyors for
concrete. They can also be made of steel housings or be transformed
into flanged bushings that can move in both radial and axial
directions.
The Bronze Backed bushing is particularly suitable for high
temperature environments where no oil is efficient and the machine
must operate under consecutive long term conditions.
