» Polyglyd Bearing DTK

DUTEK Composite Bearing manufactured by a filament winding process is a sliding bearing for many applications by utilizing various kinds of bearing layers and configurations.

DUTEK composite bearings have excellent self -lubricating and wear resistance during non-lubricated conditions since bearing layer consists of specially woven structure of PTFE and synthetic fibers. Backing layer which is composed of filament wound fiberglass-epoxy has non-corrosive entirely and can support maximum 140MPa of dynamic load. They have strong resistance against shock, vibration load and there is no stick-slip.

Properties Units Values
Maximum compressive strength MPa 430
Static loading strength MPa 240
Radial rupture strength MPa 550
Hardness HRM 95
Density g/㎤ 2.0


Operating temperature of DUTEK composite bearing is between -100~+160℃. And coefficient of thermal expansion is similar to the coefficient of thermal expansion of steel. So the bearing can exhibit its performance without separating from housing even though exposed extreme temperature change.

Units DUTEK™ Bearing Steel Aluminum
Coefficient of thermal expansion(25~150℃) ㎛/m℃ 13 x 10-6 11 x 10-6 24 x 10-6

Mechanical Properties :

Units DUTEK-T DUTEK-P
Maximum load static dynamic MPa 140 35
Maximum sliding speed m/sec 0.2 2.5
Maximum PV value MPa x m/sec 1.8 2.0
Frictional coefficient(dry) - 0.03~0.12 0.03~0.08
Maximum operating temp ℃ 160 180
Minimum operating temp ℃ -100 -100