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DP4 Red PTFE Coated Bushing

DP4Dry Bearings, Steel backing, Lead Free

DP4 bushing,DP4 teflon bush,DP4 PTFE bushing


 Metal-polymer-composite material
 Steel Backing + porous bronze sintered + PTFE + CaF2 + Firbers
 Self-lubricating & Maintenance-free
 Available in sleeve, flanged, washer, strip, plate

 Features


1. DP4 Dry Bearings material is compliant with the European Union's End of Life Vehicles ( ELV ) directive 2000/53/EC on the elimination of hazardous materials in the construction of passenger cars and light trucks.
2. DP4 Dry Bearings material is compliant with the European Union Directive 2002/95/EC concerning the restriction of the use of certain hazardous substances in electrical and electronic equipment ( RoHS Regulation ). 
3. DP4 Dry Bearings material has good wear resistance and low friction performance over a wide range of loads, speeds and temperature conditions.
4. DP4 Dry Bearings material has very good performance in oil lubricated heavy duty hydraulic applications.
5. DP4 Dry Bearings material offers benefits in applications where corrosion of the lead in DU may occur.
6. DP4 Dry Bearings material offers improved wear and friction performance along with good chemical resistance compared to DU Dry Bearings material.
7. DP4 Dry Bearings material performs well in dry under light duty applications.
8. DP4 Dry Bearings material is particularly suitable for intermittent operation under reciprocating or oscillating movements. 

 Physical & Mechanical Properties

Items

Value

Unit

Maximum Operating Temperature

280

°C

Minimum Operating Temperature

-200

°C

Maximum Static Load

250

N/mm2

Maximum Dynamic Load

140

N/mm2

Maximum Sliding Speed -dry

2.5

m/s

Maximum Sliding Speed -oil lubricated

5

m/s

Maximum PV Factor-dry

1

N/mm2 * m/s

Maximum PV Factor-oil lubricated

10

N/mm2 * m/s

Coefficient of friction -dry

0.04-0.25

 

Coefficient of friction -oil lubricated

0.02-0.08

 

 Usage Range

dry

good

oil lubricated

very good

grease lubricated

good

water lubricated

fair

process fluid lubricated

good

 Possible Application


Automotive:

Struts and shock absorbers, door hinges, bonnets and tailgate hinges, steering columns, clutches, gearbox selector fork guides, wiper arms, power steering pumps, pedal bushes, ABS equipment, etc.

Industrial:
Aerospace, agricultural equipment, construction equipment, material handling equipment, forming machines-metal, plastic and rubber, office equipment, medical and scientific equipment, packaging equipment, pneumatic and hydraulic cylinders, pumps and motors, railroad and ramways, textile machinery, valves, etc.



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