VIIPLUS INTERNATIONAL |
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The Metal-Polymer Bronze-Backed PTFE Plain Bearing is a unique and
advanced bearing solution that offers exceptional strength and
durability. Combining the robustness of a bronze backing with the
slippery smoothness of Polytetrafluoroethylene (PTFE), this bearing
is designed to handle heavy loads and demanding applications with
ease.
The bronze backing provides the bearing with a solid foundation,
ensuring stability and rigidity. Bronze is known for its excellent
wear resistance and strength, making it a reliable material for
supporting and protecting the bearing surface.
The PTFE liner, on the other hand, offers unparalleled lubricity
and low friction properties. PTFE is a synthetic fluoropolymer that
is renowned for its non-stick and self-lubricating characteristics.
This allows the bearing to operate smoothly, even in the absence of
external lubricants, reducing wear and extending the bearing's
service life.
The combination of these two materials creates a bearing that is
not only strong but also efficient and reliable. The high strength
of the bronze backing ensures that the bearing can withstand heavy
loads and demanding operating conditions, while the PTFE liner
ensures smooth and low-friction operation.
Overall, the Metal-Polymer Bronze-Backed PTFE Plain Bearing is an
excellent choice for applications that require a bearing with high
strength, durability, and smooth operation. Whether it's used in
automotive systems, industrial machinery, or any other demanding
application, this bearing is sure to deliver superior performance
and reliability.
Six factors relating to the bearing life: Load P [N/mm2] Load the
greater the load, the shorter the bearing life; the greater the
load fluctuation, the impact on bearing life greater, the shorter
the bearing life; whether, in any case, should not exceed ......
VIIPLUS constantly study the latest technology & materials and
research & development of the new products
Technological innovation to promote product development, drive
rapid development of enterprises
VSB-11 Metal-Polymer Bronze Backed PTFE Plain Bearing
Bronze Gleitlager Viiplus Bearing Metal-polymer self-lubricating
composite materials consist of metal backing sintered porous bronze
with PTFE polymer as working layer. The metal backing provides mechanical
strength, while the bronze sinter layer provides a strong
mechanical bonding between the backing and the bearing lining, the PTFE polymer offers exceptional low friction even under dry condition
and the thermoplastic polymer is generally designed to operate with
marginal lubrication. The construction promotes dimensional
stability and improves the thermal conductivity. This material
meets the demanding criteria for long life and trouble-free performance with or without lubrication.
· VSB-11
· 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
· Suitable for dry running, low coefficient of friction, lower wear, good sliding
characteristics, the transfer film created can protect the mating metal surface,
suitable for rotary and oscillating movement. Very high chemical resistance, low absorption of water and swelling,
also performs very good lubrication feature, the bronze backing provides the improved corrosion resistance
comparing with VSB-10.
Sliding Bearing Design, Selection, Inspection
1. PTFE/fibre mixture thickness 0.01~0.03mm, provides an excellent
initial transfer film, which effectively coats the mating surfaces
of the bearing assembly, forming an oxide type solid lubricant
film.
2. Sintered bronze powder thickness 0.20-0.35mm, provides max.
thermal conductivity away from the bearing surface, also serves as
a reservoir for the PTFE/Fibre mixture.
3. Bronze backing, provides exceptionally high load carrying capacity, excellent heat dissipation and very
good corrosion resistance.
· Metal-Polymer Composite Material
· Bronze Back + Porous Bronze Sinter +
· PTFE + Lead
Sliding layer PTFE |
OPERATING PERFORMANCE | |
Dry | Very Good |
Oil lubricated | Good |
Grease lubricated | Fair |
Water lubricated | Good |
Process fluid lubricated | Fair |
Max. load | Static | 250N/mm2 |
Dynamic | 140N/mm2 | |
Max. speed | Dry | 2m/s |
Lubrication | >2m/s | |
Max. PV (Dry) | Short-time | 3.6N/mm2*·m/s |
Continuous | 1.8N/mm2*·m/s | |
Temp. | -195℃~+2800℃ | |
Friction coefficient | 0.03~0.20 | |
Thermal conductivity | 70W (m·k)-1 | |
Coefficient of thermal expansion | 17*10-6k-1 |
Bearing forms available in standard dimensions
· Cylindrical bushes
· Flanged bushes
· Sliding plates
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
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.conducts
the thermal build up away from the bearing surfaces.
3. Low-carbon steel.Setting the foundation of the bushings, the steel back provides
exceptional stability,load carrying and heat dissipation
characteristics.
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The development of the VIIPLUS to study the new materials and new
products
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Welcome to contact us!
The development of the VIIPLUS to study the new materials and new
products