TRIBO/COMP® Self-Lubricating Composites

Self-lubricating bearing materials with an unequaled wear life.

TIODIZE has developed new and unique self-lubricating composite materials called TRIBO/COMP These materials use graphite fibers combined with a resin and our proprietary lubricative pigments. Our materials have a high strength-to-weight ratio which is one-fourth the weight of steel and two-thirds the weight of aluminum. These graphite composites exhibit extremely long wear life, low coefficient of friction (as low as .07) and will withstand loads in excess of 30,000 psi. They will also have chemical inertness and good electrical and thermal conductivity.

TRIBO/COMP can be processed into a variety of mechanical shapes which are self-lubricating and are superior to aluminum in stiffness per unit mass at temperatures to 600°F These components are manufactured by compression, matched-die molding and show excellent dimensional stability through repeated heating/cooling cycles and exposure to water or water vapor, solvents and oils.

** Contact the TIODIZE Engineering Department to review your drawings and specifications. We look forward to working with you to develop composite parts that meet your requirements.

Self-lubricating bearing materials Print TRIBO/COMP Spherical Bearing Information

Tribo/Comp

TRIBO/COMP can be made in many shapes and forms such as:

  • Spherical Bearings
  • Rod End Bearings
  • Bushings
  • Stem Guides
  • Thrust Washers
  • Wear Pads
  • Vanes
  • Pistons
  • Slide Bearings
  • Bearing Retainers
  • Gears
  • Seats

TRIBO/COMP® Spherical Bearing

self-lubricating composite materials
RING
BALL
RACE
MATERIAL
AMS 5643
(17-4PH)
AMS 5630
(440C)
TRIBO/COMP
HARDNESS
28RC
55RC

high strength-to-weight ratio materials

Self-Lubricating Composites

BEARING NUMBER B
BORE
DIA
+.0000
-.0005
D
OUTSIDE
DIA
+.0000
-.0005
W
BALL
WIDTH
+.000
-.002
H
RACE WIDTH+.005
-.005
O
SHOULDER
DIA
MIN
BALL
DIA
REF
RADIAL
DYNAMIC
LOAD
RATINGS
(LBS)

APPROX
MISALIGN-
MENT
STATIC
LIMIT LOAD
APPROX
WEIGHT
(LBS)
NO LOAD
BREAK
AWAY
TORQUE
(IN-LBS)
RADIAL
(LBS)
AXIAL
(LBS)
-12 .7500 1.5625 1.280 .620 .970 1.375 22,800 20° 47,000 10,400 0.31 0-15
Tribo/Comp Material Properties PMFC (Carbon) RMFC (Carbon) PMFK (KEVLAR)
Compressive Strength psi 35000 35000 35000
Tensile Strength psi 24000 24000 20000
Punch Shear psi 15000 15000 12000
Coefficient of Thermal Expansion ************* ************* *************
µ in/in/F >350°F
Direction of Compression 30 6.5
Perpendicular to Compression 7 2.5
Average <350°F 8
Coefficient of Friction (vs Steel) 0.15 0.15 0.15
Coefficient of Friction (vs Titanium) 0.17 0.17 0.17
Wear Rate mils/1000 ft ************* ************* *************
At PV=1,600,000 0.35 0.29 0.58
At PV=300,000 0.028 0.047 0.042

LEGEND:

PMFC= PEEK resin, Milled Fiber, Carbon
RMFC= Polyimide resin, Milled Fiber, Carbon
PMFK= PEEK resin, Milled Fiber, Kevlar

Steel and Titanium Friction and Wear

TRIBO/COMP®
VS.
Steel & Titanium
Friction/Wear

View Our Test Results