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DP4 bearing, fibres and PTFE lined, steel backing, self lubricating dry bush

 
DP4
Specifications
 
DP4 bushings
Metric Sizes
 
         
          

  DP4 bearing, fibres and PTFE lined, steel backing, self lubricating dry bush 

Sintered PTFE/Fibre and Bronze on Steel Backing, surface with copper-plating or tin-plating
PTFE / Fibre + Bronze +
Steel + Copper plating / tin-plating

Features
Suitable for dry running with a low coefficient of friction, low wear rate, good sliding characteristics, the transfer film created will protect the mating metal surface. Suitable for rotary and oscillating movement, high chemical resistance, lower absorption of water and reduced swelling. Also performs well with lubrication.


Structures

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. Low-carbon steel, gives exceptionally high load carrying capacity, excellent heat dissipation.
4. Copper/Tin plating thickness 0.002mm, provides good corrosion resistance.


Technical Data

Physical and Mechanical Properties

 

Usage

Maximum Operating Temperature Tmax

280

°C

dry

good

Minimum Operating Temperature Tmin

-200

°C

oil lubricated

very good

Maximum Static Load Psta,max

250

N/mm2

grease lubricated

good

Maximum Dynamic Load Pdyn,max

140

N/mm2

water lubricated

fair

Maximum Sliding Speed V-dry

2.5

m/s

process fluid lubricated

good

Maximum Sliding Speed V-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 f-dry

0.04-0.25

-

Coefficient of friction f-oil lubricated

0.02-0.08

-


Typical Applications

This material meets the demanding criteria for long life and trouble-free performance with or without lubrication.
Automotive: tractors, combines, crop sprayers, earthmovers, graders and other construction, auto machines, specific uses in power steering cylinders, steering gear thrust washers, disc brakes, calipers and pistons, shock absorbers, governor linkage, windshield wiper motor, tilt gear assemblies...
Business machines: photocopy machines, typewriters, mail sorters, postage meter systems, computer terminal printers and peripheral equipment, automatic printing devices, mail processing machinery...
Hydraulics and valves: pumps including gear, rotary, water, axial piston, and other types, ball, butterfly, poppet steam, and other valves and valve trunnions...
Home appliances: tape recorders, refrigerators, air conditioners, cleaners, polishers, sewing machines, ovens, dishwashers, clothes washing machines...And materials handling, marine engine, packaging, textile equipment, tools...etc.


Other Standard DP4 Bearing Shapes

   

 

 

DP4 Bearings & DP4 Bushings
 

8075DP4      
8075DP4 Bush |  87 x 85 x 75 mm   BS80DP4 | 81.25 x 120 x 85 x 109.75 mm   1715DP4 Bush | 17x19x15 mm   2525DP4 Bush | 25x28x25 mm
             
  DP4B plates      
0203DP4B | 2 x 3.5 x 3 mm   DP4 plates   4050DP4 Bearing | 40x43x50 mm    

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1215DP4  1220DP4  1225DP4  1310DP4  1320DP4  1405DP4  1410DP4  1412DP4  1415DP4  1420DP4  1425DP4  1510DP4  1512DP4  1515DP4  1520DP4  1525DP4  1610DP4  1612DP4  1615DP4  1620DP4  1625DP4  1720DP4  1810DP4  1815DP4  1820DP4  1825DP4  2010DP4  2015DP4  2020DP4  2025DP4  2030DP4  2215DP4  2220DP4  2225DP4  2230DP4  2415DP4  2420DP4  2425DP4  2430DP4  2515DP4  2520DP4  2525DP4  2530DP4  2550DP4  2815DP4  2820DP4  2825DP4  3010DP4  3015DP4  3020DP4  3025DP4  3030DP4  3040DP4  3220DP4  3230DP4  3240DP4  3520DP4  3530DP4  3535DP4  3540DP4  3550DP4  3720DP4  4020DP4  4030DP4  4040DP4  4050DP4  4520DP4  4530DP4  4540DP4  4545DP4  4550DP4  5020DP4  5030DP4  5040DP4  5050DP4  5060DP4  5520DP4  5525DP4  5530DP4  5540DP4  5550DP4  5555DP4  5560DP4  6020DP4  6030DP4  6040DP4  6050DP4  6060DP4  6070DP4  6530DP4  6550DP4  6570DP4  7040DP4  7070DP4  7560DP4  7580DP4  8040DP4  8060DP4  8080DP4  80100DP4  8530DP4  8560DP4  85100DP4  9060DP4  90100DP4  9560DP4  95100DP4  10050DP4  10060DP4  100115DP4 

02DP402  02DP403  025DP4025  025DP404  03DP403  03DP404  03DP406  04DP404  04DP406  05DP406  05DP408  06DP403  06DP404  06DP406  06DP408  06DP410   06DP412  07DP408  07DP412  08DP404  08DP406  08DP408  08DP410  08DP412  08DP414  09DP406  09DP408  09DP410  09DP412  10DP404  10DP408  10DP412  10DP414  10DP416  11DP414  12DP404  12DP406  12DP408  12DP410  12DP412  12DP416  14DP404  14DP406  14DP412  14DP414  14DP416  14DP420  16DP406  16DP408  16DP412  16DP416  16DP420  16DP424  18DP406  18DP410  18DP412  18DP416  20DP406  20DP412  20DP414  20DP416  20DP420  20DP428  22DP412  22DP416  22DP424  22DP428  24DP408  24DP416  24DP418  24DP420  24DP424  24DP432  26DP416  26DP416  26DP424  28DP428  28DP432  30DP412  30DP416  30DP430  30DP436  32DP408  32DP416  32DP424  32DP428  32DP432  32DP440  34DP408  34DP412  34DP416  34DP424  34DP428  34DP432  34DP448  34DP464  36DP428  36DP432  36DP436  36DP440  36DP448  36DP456  36DP460  36DP464  36DP472  40DP416  40DP426  40DP432  40DP440  40DP448  40DP456  40DP460  40DP464  40DP472  40DP476  44DP432  44DP436  44DP440  44DP448  44DP456  44DP460  44DP472  44DP476  44DP480  48DP432  48DP436  48DP440  48DP448  48DP456  48DP460  48DP464  48DP472  48DP476  48DP480  52DP432  52DP438  52DP440  52DP448  52DP456  52DP460  52DP464  52DP472  52DP476  52DP480  56DP432  56DP438  56DP440  56DP448  56DP456  56DP460  56DP464  56DP472  56DP476  56DP480  58DP432  58DP436  58DP440  58DP448  58DP456  58DP460  58DP464  58DP472