DU Metal-Polymer Anti-Friction Plain Bearings
Availability
Bearing forms available in standard dimensions
The main functions of the DU Cylindrical Bush Bearing are:
Absorbing and transferring radical forces
Fixing moving components to each other
Ensuring guidance accuracy with radial and axial movements over the
entire service life
The Features of the DU Flange Bush Bearing are:
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.
Characteristics
DU self-lubricating bushings offer very good wear and low friction performance over a wide range of loads, speeds and temperatures in dry running
conditions
Bushing material suitable for lubricated applications
Anti-friction bearing suitable for linear, oscillating and rotating movements
Approved to standard FAR 25.853 and FAR 25.855 - Federal Aviation
Regulations – making it suitable for interior aircraft applications
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.
Application
Metallurgy Machine
Casting Machines,
Consecutive Casting Machines,
Cemetery Machines,
Spiral Transporting Machines, Etc.
Material: Bronze+bronze powder+PTFE+polymer
Microsection
Sliding layer
PTFE + Lead
Porous Bronze Sinter
Steel Backing
Cylindrical Bushes & Flange DU Bushing Operating Performance
| Dry | Very Good |
| Oil lubricated | Good |
| Grease lubricated | Fair |
| Water lubricated | Fair |
| Process fluid lubricated | Fair |
