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SB-DU plates & SBU strips, PTFE lined, steel backing, self-lubricating sliding plates

 
SB-DU
Material Specs
 
SB-DU strips  & SB-DU plates
Metric Sizes
       
  

  SB-DU plates & SBU strips, PTFE lined, steel backing, self-lubricating sliding plates  

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

 Thermal Conductivity λ

40

W/mK

  dry

good

 Maximum Operating Temperature Tmax

280

°C

  oil lubricated

good

 Minimum Operating Temperature Tmin

-200

°C

  grease lubricated

fair

 Compressive Yield Strength σc

350

N/mm2

  water lubricated

fair

 Maximum Static Load Psta,max

250

N/mm2

  process fluid lubricated

fair

 Maximum Dynamic Load Pdyn,max

140

N/mm2

 

 Maximum Sliding Speed V-dry

2.5

m/s

 Maximum PV Factor-dry, continuous operation

1.8

N/mm2 * m/s

 Maximum PV Factor-dry, intermittent operation

3.5

N/mm2 * m/s

 Coefficient of friction f-dry

0.02-0.25

-

 Coefficient of friction f-oil lubricated

0.02-0.12

-


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 SB-DU Shapes

   

 


SBU-B plates & SBU-B strips (SF-1 series)

     
DU plates & DU strips
2000x200x1.95 mm
  DU plates & DU strips
2000x200x1.95 mm
  DU plates & DU strips
2000x193x2.48 mm
  DU plates & DU strips
2000x193x2.48 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S07190DU  S10190DU  S15240DU  S20240DU  S25240DU  S30240DU