China Bronze Gleitlager manufacturer

Oilless Braided Composite PTFE Self Lubricated Bearing

Product Details:
Place of Origin: China
Brand Name: viiplus Fabric(pom) composite bearing
Certification: DIN 1494, ISO 3547
Model Number: Oil-free self-lubricating bearing
Payment & Shipping Terms:
Minimum Order Quantity: 500 Piece/Pieces (Min. Order)
Price: negotiable
Packaging Details: PLASTIC BAG+ CARTON+PALLET
Delivery Time: 7-25 work days
Payment Terms: Valve Split Steel Bushings Shaft Bearings Suppliers
Supply Ability: Have some inventory
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Detail Information

Material: Steel+pom+CuPb10Sn Product Features: No Oil, Self-lubrication, No Maintenance
Material: Stainless Steel+PTFE Type: Sleeve,flanged,plate
Application: Building Machinery,farm Machinery,automobile And So On Sizes: Standard Sizes And Non-standard Sizes Available
High Light:

Self Lubricated valve bushing

,

PTFE valve bushing

Product Description

Value Bushing Steel Backed Ptfe Lined Bronze And Brass Bushings-Stainless Steel 316


Steel Backed Bushing High performance steel reinforced DU bushings, environmental protection is based on steel substrate, central bronze powder, sintered spherical surface that rolls four ethylene (PTFE) and a mixture of green polymeric material, bearing rolling and sliding. The product is lead-free environmental protection, the wear-resistant performance is excellent, a plastic layer and a copper layer with high strength, fatigue resistance, impact-resistant performance are a good way to an advantage.

 

 

Oilless Braided Composite PTFE Self Lubricated Bearing 0                      Oilless Braided Composite PTFE Self Lubricated Bearing 1

 

 

Bushings Metric (mm)Imperial (inch) Dimensions Get A quote.
Tolerances, operating clearance (Bushing data)
Shaft and housing tolerances (Design of bushing arrangements)

 
Recommended fits
Tolerance shaft f7
Tolerance housing H7
 

Maximum load pressure: 180Mpa

Friction factor: 0.03~0.20

Operating temperature range: -90 ° C ~ 180 ° C

 

 

Poly tetra fluoroethylene(PTFE)

 

It is a polymer made of tetrafluoroethylene as monomer.White waxy, translucent, good heat and cold resistance, can be used in -180 ~ 260 C for a long time.This material has the characteristics of anti - acid, anti - alkali, anti - various organic solvents, almost insoluble in all solvents.At the same time, ptfe has the characteristics of high temperature resistance, its coefficient of friction is very low, so it can be used for lubrication, but also become easy to clean the ideal coating of the inner layer of the water pipe;Toxic, human carcinogen.

 

 

Property date
maximum bearing capacityP Static load 250N/mm²
Dynamic load 140N/mm²
highest line speedV Dry friction 2.5m/s
Oil lubrication 5m/s
High PV value Dry friction 3.6N/mm²・m/s
Oil lubrication 50N/mm²・m/s
The coefficient of frictionμ Dry friction 0.04~0.20
Oil lubrication 0.02~0.07
The use of temperature -195℃~+280℃
Coefficient of thermal conductivity 42W/m・K
Coefficient of thermal expansion 11×10-6/K
 
 

Characteristics

Suitable for use in fatting or lubricating conditions, high bearing capacity, good wear resistance;

 

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;

 

High load, low speed lubrication conditions with stable low friction coefficient and excellent wear resistance;

 

Friction surface layer can be secondary processing, bearing into the seat hole after processing, can further improve the accuracy of fit;

 

Long working time under boundary lubrication conditions, such as in the process of regular grease maintenance, can extend the service life;

 

Bearings for thin-wall structure, light weight, occupies a small volume, suitable for compact design;

Good dimensional stability, high mechanical strength;

 

 

Strusture

 

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.

 

self - lubricating oil - free bearing bearing of the molding process

 

 
Process of stainless steel self-lubricating oil-free bearing
 
 

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.

 

Structure And Composition

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

 

 

Operating Performance

Dry

Poor

Oil lubricated

Good

Grease lubricated

Very Good

Water lubricated

Poor

Process fluid lubricated

Poor

 

 

 

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.

 

STRUCTURE AND COMPOSITION

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

 

Operating Performance

Dry

Poor

Oil lubricated

Good

Grease lubricated

Very Good

Water lubricated

Poor

Process fluid lubricated

Poor

 

 

 

Availability

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

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