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DP4 flanged bearing, fibres and PTFE lined, steel backing, dry bush

Material Specifications
DP4 flanged bushings
Metric Sizes

  DP4 flanged bearing, fibres and PTFE lined, steel backing, dry bush  

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

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.


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



Maximum Operating Temperature Tmax





Minimum Operating Temperature Tmin



oil lubricated

very good

Maximum Static Load Psta,max



grease lubricated


Maximum Dynamic Load Pdyn,max



water lubricated


Maximum Sliding Speed V-dry



process fluid lubricated


Maximum Sliding Speed V-oil lubricated




Maximum PV Factor-dry


N/mm2 * m/s

Maximum PV Factor-oil lubricated


N/mm2 * m/s

Coefficient of friction f-dry



Coefficient of friction f-oil lubricated



  Standard DP4 Flanged Bearings --- Metric Size  


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 Shapes




DP4 Bearings & DP4 Bushings

8075SBP4 | metric 87 x 85 x 75 mm   BS80SBP4 | 81.25 x 120 x 85 x 109.75 mm     1715DP4 Bush | 17x19x15 mm   2525DP4 Bush | 25x28x25 mm
0203DP4B   DP4B plates        
0203DP4B | 2 x 3.5 x 3 mm   DP4 plates     4050DP4 Bearing | 40x43x50 mm    








































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