Plain Bearings Metal Polymer | Copper Flanged Sleeve Technology - DX POM Bushings

Basic Infomation
Place of Origin: Zhejiang, China (Mainland)
Brand Name: VIIPLUS
Certification: ISO 9001
Minimum Order Quantity: 50 Piece/Pieces (Min. Order)
Price: Negotiable
Delivery Time: 2~4 Weeks
Payment Terms: T/T PREPARD, T/T
Supply Ability: 800000 Piece/Pieces per Month
Detail Infomation
Meterial: Ow-Carbon Steel + Porous Bronze + Yellow POM Plating: Tin Or Copper
Type: Wrapped Bushes, Thrust Washer Lubricating: Boundary Lubricating
Customized: Based On Drawing Or Sample Color: Black,red,yellow,blue POM
Application: Automotive Chassis, Forging Machines, Mine Quarrying Machines, Metal Melting And Casing Machines And In Water Irrigating And Steel Rolling Industries, Etc.

Product Description


Plain Bearings Metal Polymer | Copper Flanged Sleeve Technology - DX POM Bushings


Metal-Polymer Plain Bearings Grease Lubricated


VSB20 abroad (DX) boundary lubrication bearing with high quality low carbon steel or copper plate as substrate, the middle sintered porous spherical bronze powder, the friction surface rolling modified polyformaldehyde (POM and Pb), and through the high temperature solid combination as one of the three layers of plasticizing boundary lubrication bearing materials (also called prelubricated bearing material), the rolling and sliding bearing.

The material can provide better bearing capacity and wear resistance, friction surface with oil pits, in the presence of a small amount of lubrication medium, its performance is better than other sliding bearing materials.

The product is suitable for working under normal temperature and medium (heavy) load, low speed occasions, to replace the traditional copper sleeve, which reduces the cost and extends the service life.

SB-20 boundary lubricated bearings are divided into steel base and copper base






VSB-20 Typical features

  1. Suitable for use in fatting or lubricating conditions, high bearing capacity, good wear resistance;
  2. Suitable for rotating, reciprocating and swinging and other forms of movement and frequent starting, intermittent movement or heavy load and other occasions which are not easy to form oil film lubrication;
  3. High load, low speed lubrication conditions with stable low friction coefficient and excellent wear resistance;
  4. Friction surface layer can be secondary processing, bearing into the seat hole after processing, can further improve the accuracy of fit;
  5. Long working time under boundary lubrication conditions, such as in the process of regular grease maintenance, can extend the service life;
  6. Bearings for thin-wall structure, light weight, occupies a small volume, suitable for compact design;
  7. Good dimensional stability, high mechanical strength;


1. POM thickness 0.30~0.50 mm. It provides high wearresistance and low friction even with only minute volume oflubricant are supplied, this bearing surface carries a pattern of circular indents which should be filled with grease on assembly of the bearing.

2. Sintered bronze powder thickness 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 PTFE layer and 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.



· Metal-Polymer Composite Bushing Material
· Steel Back + Porous Bronze Sinter +
POM with Lubrication Indents

Plain Bearings Metal Polymer | Copper Flanged Sleeve Technology - DX POM Bushings

Sliding layer POM
with or without
lubricant indents
for machining
Porous Bronze
Steel Back



Dry Poor
Oil lubricated Good
Grease lubricated Very Good
Water lubricated Poor
Process fluid lubricated Poor




Max. load Static 250N/mm2
Dynamic 140N/mm2
  Rotaing oscillating 60N/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℃~+280℃
Friction coefficient                         Dry 0.03~0.20
                                                      Lubrication >2m/s
Thermal conductivity 42W (m·k)-1


Coefficient of thermal expansion




Bearing forms available in standard dimensions
· Cylindrical bushes
· Thrust washers
· Sliding plates
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




  • Hydraulic machinery: hydraulic steel gate plane support slide, etc.
  • Hydraulic turbine: guide vane (upper guide, middle guide, lower guide) shaft sleeve, wheel shaft sleeve, pin shaft sleeve (connecting rod pin, push and pull rod pin, relay piston pin), anti-wear ring plate (thrust ring), anti-wear block, control ring side tile.
  • Hoisting and transport machinery: forklift lifting device, gantry crane and pulley block, brake, stacker resorter hinge, shore lifting support hinge seat, etc.
  • Oil machinery: pumping unit reducer intermediate shaft and output shaft sleeve, etc.
  • Valve industry: butterfly valve, globe valve, etc.
  • Other: metallurgical machinery, mining machinery, construction machinery, agricultural machinery and rolling steel industry.

STOCK SIZE for Self Lubricating Bearings


Plain Bearings & Self-lubricating Bushings | VIIPLUS Surface Engineering|Bearing Technology

Bushings,Lubricated Bearings,Composite Bearings,Metal Bearings,Compressor Bearings,Metal-polymer,Filament Wound,Plain Bearings,Flange Bearings,Polymer Bearings,Flange Bushings,Pump Bearings,Flanged Bushes,Thrust Plates,Industrial Bearings



Pom Coated Bearing, Metal-Polymer Composite Bearing, Manufacture, Wholesale
Plain Bearings Metal Polymer | Copper Flanged Sleeve Technology - DX POM Bushings


Contact Details

WhatsApp : +86 18258386757