• JIAXING VIIPLUS INTERNATIONAL TRADING CO.,LTD
    David from Canada
    Our company import the bronze gleitlager from viiplus china,viiplus professional team makes sure customs clearance is always smooth. They provide an accurate bronze bushing classification, handle all the paperwork,We have received the self-lubricating bronze bushings. They look well done and the high quality.
  • JIAXING VIIPLUS INTERNATIONAL TRADING CO.,LTD
    Valerie from California
    We import the bronze gleitlager from China to under the incoterm FOB shanghai, sometimes by Air. viiplus is a very good bronze gleitlager supplier, they are very professional and patient, after we inform the new order, they will manufacturer bronze gleitlager in time and give us the schedule , and then we just need to receive the bronze parts
  • Daisy From Germany
    The best surface finishes for Sleeve Bearing, tighter concentricity, and bronze bushings material uniformity. The good supplier of standard inch and metric sleeve bearings and bushings from china.
Contact Person : Tiffany
Phone Number : +86 18258386757
WhatsApp : +8618258386757

Oilless Braided Composite PTFE Self Lubricated Bearing, Dx bushing, Steel Backed

Place of Origin China
Brand Name viiplus Fabric(pom) composite bearing
Certification DIN 1494, ISO 3547
Model Number Oil-free self-lubricating bearing
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
Product Details
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
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Self Lubricated valve bushing

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PTFE valve bushing

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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.

 

 

Plastic Plain Bearings                      Valve Bushing

 

 

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;

Dx bushing size chart

 
  Di (mm) Do (mm) B (mm) bearing shaft The largest diameter(mm) Minimum diameter(mm) The maximum clearance(mm) The minimum clearance (mm)
0203DU 2 3.5 3 H6 h6 2.048 2 0.054 0
0205DU 2 3.5 5 H6 h6 2.048 2 0.054 0
0303DU 3 4.5 3 H6 h6 3.048 3 0.054 0
0305DU 3 4.5 5 H6 h6 3.048 3 0.054 0
0306DU 3 4.5 6 H6 h6 3.048 3 0.054 0
0403DU 4 5.5 3 H6 h6 4.048 4 0.056 0
0404DU 4 5.5 4 H6 h6 4.048 4 0.056 0
0406DU 4 5.5 6 H6 h6 4.048 4 0.056 0
0410DU 4 5.5 10 H6 h6 4.048 4 0.056 0
0505DU 5 7 5 H7 f7 5.055 4.99 0.077 0
0508DU 5 7 8 H7 f7 5.055 4.99 0.077 0
0510DU 5 7 10 H7 f7 5.055 4.99 0.077 0
0604DU 6 8 4 H7 f7 6.055 5.99 0.077 0
0606DU 6 8 6 H7 f7 6.055 5.99 0.077 0
0608DU 6 8 8 H7 f7 6.055 5.99 0.077 0
0610DU 6 8 10 H7 f7 6.055 5.99 0.077 0
0705DU 7 9 5 H7 f7 7.055 6.99 0.083 0.003
0710DU 7 9 10 H7 f7 7.055 6.99 0.083 0.003
0806DU 8 10 6 H7 f7 8.055 7.99 0.083 0.003
0808DU 8 10 8 H7 f7 8.055 7.99 0.083 0.003
0810DU 8 10 10 H7 f7 8.055 7.99 0.083 0.003
0812DU 8 10 12 H7 f7 8.055 7.99 0.083 0.003
1006DU 10 12 6 H7 f7 10.058 9.99 0.086 0.003
1008DU 10 12 8 H7 f7 10.058 9.99 0.086 0.003
1010DU 10 12 10 H7 f7 10.058 9.99 0.086 0.003
1012DU 10 12 12 H7 f7 10.058 9.99 0.086 0.003
1015DU 10 12 15 H7 f7 10.058 9.99 0.086 0.003
1020DU 10 12 20 H7 f7 10.058 9.99 0.086 0.003
1208DU 12 14 8 H7 f7 12.058 11.99 0.092 0.006
1210DU 12 14 10 H7 f7 12.058 11.99 0.092 0.006
1212DU 12 14 12 H7 f7 12.058 11.99 0.092 0.006
1215DU 12 14 15 H7 f7 12.058 11.99 0.092 0.006
1220DU 12 14 20 H7 f7 12.058 11.99 0.092 0.006
1225DU 12 14 25 H7 f7 12.058 11.99 0.092 0.006
1310DU 13 15 10 H7 f7 13.058 12.99 0.092 0.006
1320DU 13 15 20 H7 f7 13.058 12.99 0.092 0.006
1405DU 14 16 5 H7 f7 14.058 13.99 0.092 0.006
1410DU 14 16 10 H7 f7 14.058 13.99 0.092 0.006
1412DU 14 16 12 H7 f7 14.058 13.99 0.092 0.006
1415DU 14 16 15 H7 f7 14.058 13.99 0.092 0.006
1420DU 14 16 20 H7 f7 14.058 13.99 0.092 0.006
1425DU 14 16 25 H7 f7 14.058 13.99 0.092 0.006
1510DU 15 17 10 H7 f7 15.058 14.99 0.092 0.006
1512DU 15 17 12 H7 f7 15.058 14.99 0.092 0.006
1515DU 15 17 15 H7 f7 15.058 14.99 0.092 0.006
1520DU 15 17 20 H7 f7 15.058 14.99 0.092 0.006
1525DU 15 17 25 H7 f7 15.058 14.99 0.092 0.006
1610DU 16 18 10 H7 f7 16.058 15.99 0.092 0.006
1612DU 16 18 12 H7 f7 16.058 15.99 0.092 0.006
1615DU 16 18 15 H7 f7 16.058 15.99 0.092 0.006
1620DU 16 18 20 H7 f7 16.058 15.99 0.092 0.006
1625DU 16 18 25 H7 f7 16.058 15.99 0.092 0.006
1720DU 17 19 20 H7 f7 17.061 16.99 0.095 0.006
1810DU 18 20 10 H7 f7 18.061 17.99 0.095 0.006
1815DU 18 20 15 H7 f7 18.061 17.99 0.095 0.006
1820DU 18 20 20 H7 f7 18.061 17.99 0.095 0.006
1825DU 18 20 25 H7 f7 18.061 17.99 0.095 0.006
2010DU 20 23 10 H7 f7 20.071 19.99 0.112 0.01
2015DU 20 23 15 H7 f7 20.071 19.99 0.112 0.01
2020DU 20 23 20 H7 f7 20.071 19.99 0.112 0.01
2025DU 20 23 25 H7 f7 20.071 19.99 0.112 0.01
2030DU 20 23 30 H7 f7 20.071 19.99 0.112 0.01
2215DU 22 25 15 H7 f7 22.071 21.99 0.112 0.01
2220DU 22 25 20 H7 f7 22.071 21.99 0.112 0.01
2225DU 22 25 25 H7 f7 22.071 21.99 0.112 0.01
2230DU 22 25 30 H7 f7 22.071 21.99 0.112 0.01
2415DU 24 27 15 H7 f7 24.071 23.99 0.112 0.01
2420DU 24 27 20 H7 f7 24.071 23.99 0.112 0.01
2425DU 24 27 25 H7 f7 24.071 23.99 0.112 0.01
2430DU 24 27 30 H7 f7 24.071 23.99 0.112 0.01
2515DU 25 28 15 H7 f7 25.071 24.99 0.112 0.01
2520DU 25 28 20 H7 f7 25.071 24.99 0.112 0.01
2525DU 25 28 25 H7 f7 25.071 24.99 0.112 0.01
2530DU 25 28 30 H7 f7 25.071 24.99 0.112 0.01
2550DU 25 28 50 H7 f7 25.071 24.99 0.112 0.01
2815DU 28 32 15 H7 f7 28.085 27.99 0.126 0.01
2820DU 28 32 20 H7 f7 28.085 27.99 0.126 0.01
2825DU 28 32 25 H7 f7 28.085 27.99 0.126 0.01
2830DU 28 32 30 H7 f7 28.085 27.99 0.126 0.01
3010DU 30 34 10 H7 f7 30.085 29.99 0.126 0.01
3015DU 30 34 15 H7 f7 30.085 29.99 0.126 0.01
3020DU 30 34 20 H7 f7 30.085 29.99 0.126 0.01
3025DU 30 34 25 H7 f7 30.085 29.99 0.126 0.01
3030DU 30 34 30 H7 f7 30.085 29.99 0.126 0.01
3040DU 30 34 40 H7 f7 30.085 29.99 0.126 0.01
3220DU 32 36 20 H7 f7 32.085 31.99 0.135 0.015
3230DU 32 36 30 H7 f7 32.085 31.99 0.135 0.015
3240DU 32 36 40 H7 f7 32.085 31.99 0.135 0.015
3520DU 35 39 20 H7 f7 35.085 34.99 0.135 0.015
3530DU 35 39 30 H7 f7 35.085 34.99 0.135 0.015
3535DU 35 39 35 H7 f7 35.085 34.99 0.135 0.015
3540DU 35 39 40 H7 f7 35.085 34.99 0.135 0.015
3550DU 35 39 50 H7 f7 35.085 34.99 0.135 0.015
3720DU 37 41 20 H7 f7 37.085 36.99 0.135 0.015
4020DU 40 44 20 H7 f7 40.085 39.99 0.135 0.015
4030DU 40 44 30 H7 f7 40.085 39.99 0.135 0.015
4040DU 40 44 40 H7 f7 40.085 39.99 0.135 0.015
4050DU 40 44 50 H7 f7 40.085 39.99 0.135 0.015
4520DU 45 50 20 H7 f7 45.105 44.99 0.155 0.015
4530DU 45 50 30 H7 f7 45.105 44.99 0.155 0.015
4540DU 45 50 40 H7 f7 45.105 44.99 0.155 0.015
4545DU 45 50 45 H7 f7 45.105 44.99 0.155 0.015
4550DU 45 50 50 H7 f7 45.105 44.99 0.155 0.015
5020DU 50 55 20 H7 f7 50.11 49.99 0.16 0.015
5030DU 50 55 30 H7 f7 50.11 49.99 0.16 0.015
5040DU 50 55 40 H7 f7 50.11 49.99 0.16 0.015
5050DU 50 55 50 H7 f7 50.11 49.99 0.16 0.015
5060DU 50 55 60 H7 f7 50.11 49.99 0.16 0.015
5520DU 55 60 20 H7 f7 55.11 54.99 0.17 0.02
5525DU 55 60 25 H7 f7 55.11 54.99 0.17 0.02
5530DU 55 60 30 H7 f7 55.11 54.99 0.17 0.02
5540DU 55 60 40 H7 f7 55.11 54.99 0.17 0.02
5550DU 55 60 50 H7 f7 55.11 54.99 0.17 0.02
5555DU 55 60 55 H7 f7 55.11 54.99 0.17 0.02
5560DU 55 60 60 H7 f7 55.11 54.99 0.17 0.02
6020DU 60 65 20 H7 f7 60.11 59.99 0.17 0.02
6030DU 60 65 30 H7 f7 60.11 59.99 0.17 0.02
6040DU 60 65 40 H7 f7 60.11 59.99 0.17 0.02
6050DU 60 65 50 H7 f7 60.11 59.99 0.17 0.02
6060DU 60 65 60 H7 f7 60.11 59.99 0.17 0.02
6070DU 60 65 70 H7 f7 60.11 59.99 0.17 0.02
6530DU 65 70 30 H7 f7 65.11 64.99 0.17 0.02
6550DU 65 70 50 H7 f7 65.11 64.99 0.17 0.02
6570DU 65 70 70 H7 f7 65.11 64.99 0.17 0.02
7040DU 70 75 40 H7 f7 70.11 69.99 0.17 0.02
7050DU 70 75 50 H7 f7 70.11 69.99 0.17 0.02
7070DU 70 75 70 H7 f7 70.11 69.99 0.17 0.02
7560DU 75 80 60 H7 f7 75.11 74.99 0.17 0.02
7580DU 75 80 80 H7 f7 75.11 74.99 0.17 0.02
8040DU 80 85 40 H7 h8 80.155 80.02 0.201 0.02
8060DU 80 85 60 H7 h8 80.155 80.02 0.201 0.02
8080DU 80 85 80 H7 h8 80.155 80.02 0.201 0.02
80100DU 80 85 100 H7 h8 80.155 80.02 0.201 0.02
8530DU 85 90 30 H7 h8 85.155 85.02 0.209 0.02
8560DU 85 90 60 H7 h8 85.155 85.02 0.209 0.02
85100DU 85 90 100 H7 h8 85.155 85.02 0.209 0.02
9060DU 90 95 60 H7 h8 90.155 90.02 0.209 0.02
90100DU 90 95 100 H7 h8 90.155 90.02 0.209 0.02
9560DU 95 100 60 H7 h8 95.155 95.02 0.209 0.02
95100DU 95 100 100 H7 h8 95.155 95.02 0.209 0.02
10050DU 100 105 50 H7 h8 100.155 100.02 0.209 0.02
10060DU 100 105 60 H7 h8 100.155 100.02 0.209 0.02
100115DU 100 105 115 H7 h8 100.155 100.02 0.209 0.02
10560DU 105 110 60 H7 h8 105.155 105.02 0.209 0.02
105115DU 105 110 115 H7 h8 105.155 105.02 0.209 0.02
11060DU 110 115 60 H7 h8 110.155 110.02 0.209 0.02
110115DU 110 115 115 H7 h8 110.155 110.02 0.209 0.02
11550DU 115 120 50 H7 h8 115.155 115.02 0.209 0.02
11570DU 115 120 70 H7 h8 115.155 115.02 0.209 0.02
12050DU 120 125 50 H7 h8 120.21 120.07 0.264 0.07
12060DU 120 125 60 H7 h8 120.21 120.07 0.264 0.07
120100DU 120 125 100 H7 h8 120.21 120.07 0.264 0.07
125100DU 125 130 100 H7 h8 125.21 125.07 0.273 0.07
13060DU 130 135 60 H7 h8 130.21 130.07 0.273 0.07
130100DU 130 135 100 H7 h8 130.21 130.07 0.273 0.07
13560DU 135 140 60 H7 h8 135.21 135.07 0.273 0.07
13580DU 135 140 80 H7 h8 135.21 135.07 0.273 0.07
14060DU 140 145 60 H7 h8 140.21 140.07 0.273 0.07
140100DU 140 145 100 H7 h8 140.21 140.07 0.273 0.07
15060DU 150 155 60 H7 h8 150.21 150.07 0.273 0.07
15080DU 150 155 80 H7 h8 150.21 150.07 0.273 0.07
150100DU 150 155 100 H7 h8 150.21 150.07 0.273 0.07
16080DU 160 165 80 H7 h8 160.21 160.07 0.273 0.07
160100DU 160 165 100 H7 h8 160.21 160.07 0.273 0.07
180100DU 180 185 100 H7 h8 180.216 180.07 0.279 0.07
200100DU 200 205 100 H7 h8 200.216 200.07 0.288 0.07
210100DU 210 215 100 H7 h8 210.216 210.07 0.288 0.07
220100DU 220 225 100 H7 h8 220.216 220.07 0.288 0.07
250100DU 250 255 100 H7 h8 250.222 250.07 0.294 0.07
300100DU 300 305 100 H7 h8 300.222 300.07 0.303 0.07

POM Composite Bearing

Wrapped sliding bearing, wrapped bushing, steel/POM sliding layer, DIN 1494/ISO 3547, Low-maintenance
TECHNICAL DETAILS
Specific load capacity static ≤ 250 [N/mm2] Temperature strain - 40 [°C] to + 130 [°C]
Specific load capacity dynamic ≤ 140 [N/mm2]
Sliding speed ≤ 2.5 [m/s] Max. PV-value 2.8 [N/mm² x m/s]
Friction value 0.04 [µ] to 0.12 [µ]
MATERIALS
Support material Steel copper-plated or tin-plated Intermediate layer Sintered bronze
Sliding layer POM (MoS2)/lubrication pockets
TOLERANCE DETAILS
Housing Ø H7 Shaft tolerance h8
Bushing inner-Ø after mounting in the range of D
SHAFT MATERIAL
Steel, hardened or untempered
Surface roughness ≤ Ra 0.8
PROPERTIES
It works with grease or oil lubrication. All kind of movements are suitable for this sliding material. It has good resistance to dirt, is very robust and has a high load capacity.
RANGE OF APPLICATION
truck cranes, agriculture machines, hydraulic cylinders, construction machinery, tale gates
MAINTENANCE
It is a low maintanence bearing material with MoS2 sliding layer and lubrication pockets. An initial greasing during installation is necessary, after that, periodic greasing with oil or grease is mandatory.
MOUNTING ADVISE
Housing Chamfer min. 1.5 mm x 15-45°, for easy bushing alignment
Shaft Chamfer 5 mm x 15°, for easy insertion of the shaft
We advises to use a force fitting mandrel for the installation of the bushing. It might be necessary to apply some grease on the outer surface of the bushing when press fitting it into the housing.
Gluing Adhesive should not contact the sliding surface!

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