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iglide® X6 - material data

Materials table

General features Unit iglide® X6 Test method
Density g/cm³ 1.53
Color Blue grey
Max. moisture absorption at 73°F/50% r.h. Wt.-% 0.1 DIN 53495
Max. moisture absorption Wt.-% 0.5
Coefficient of friction, dynamic against steel µ 0.09 - 0.25
P x v value, max. (dry) psi x fpm 38,350

Mechanical properties
Modulus of elasticity psi 2,320,600 DIN 53457
Tensile strength at 68° F psi 46,060 DIN 53452
Compressive strength psi 27,557
Permissible static surface pressure (68°F) psi 21,755
Shore D hardness 89 DIN 53505

Physical and thermal properties
Max. long-term application temperature °F 482
Max. short-term application temperature °F 599
Min. application temperature °F -148
Thermal conductivity W/m x K 0.55 ASTM C 177
Coefficient of thermal expansion [K-1 x 10-5] 1 DIN 53752

Electrical properties
Specific volume resistance Ωcm < 105 DIN IEC 93
Surface resistance Ω < 105 DIN 53482

Permissible p x v values  
Permissible surface speeds

Permissible p x v values for iglide® X6 plastic bushings with a 0.039 inches wall thickness, in dry operation against a steel shaft at 68°F, installed in a steel housing.

Deformation under load and temperatures

Deformation under load and temperature

Compressive strength

With increasing temperatures, the compressive strength of iglide® X6 plastic bushings decreases. The graph on the left shows the elastic deformation of iglide® X6 with radial loads. At the recommended maximum surface pressure of 290 psi, the deformation is less than 2%.

Maximum surface speeds

fpm Rotary Oscillating Linear
Continuous 295 216 984
Short term 689 492 1969

Permissible surface speeds

Due to the high temperature resistance and good thermal conductivity, iglide® X6 is also suitable for high speed applications. At the given speeds, friction can cause a temperature increase to maximum permissible levels. In practice, this temperature is rarely reached due to varying application conditions.

Maximum recommended surface pressure dependent on the temperature

Maximum recommended static surface pressure based on temperature (21,760 psi at +68°F)


The surrounding temperatures noticeably influence the wear performance of plastic bushings. The temperature resistance of iglide® X6 is among the highest in the iglide® range. In many tests it has shown a six times higher wear performance compared to the established high-temperature bearing iglide® T500. Another advantage to iglide® X6 is that axial fastening is only necessary at temperatures above 320°F.

iglide® X6 Application temperature
Minimum –148°F
Max., long-term +482 °F
Max., short-term +599 °F
Add. securing is required from +329 °F

plastic bushing coefficients of friction

Coefficient of friction for iglide® X6 as a result of the running speed; p = 109 psi

Friction and wear

Similar to wear resistance, the coefficient of friction μ also changes with the load. The coefficient of friction of iglide® X6 declines with higher pressure and is practically constant for pressure above 4,350 psi. A higher speed also results in a lower coefficient of friction.

The best performance is achieved with the plain shaft materials free cutting steel and plain steel 1.0037. At higher loads, we recommend harder steel qualities. Non-hardened steel shafts can be worn be the bushing at pressure over 290 psi. The wear database shows that iglide® X6 is more suitable for rotating than for oscillating applications.

If the shaft material you plan on using is not shown in these results, please contact us.

Coefficients of friction for iglide® X6 against steel (Shaft finish = 40 rms, 50 HRC):

iglide® X6 Dry Grease Oil Water
Coefficients of friction μ 0.08–0.15 0.09 0.04 0.04

Coefficients of friction dependent on the pressure

Coefficient of friction as a function of the pressure, v = 1.96 fpm

Coefficients of friction dependent on the shaft surface

Coefficient of friction as a function of the shaft surface (1050 hard chromed)

Wear with different shaft materials, oscillating and rotating movement

Wear rotating with different shaft materials, p = 145 psi, v = 59 fpm

Wear with different shaft materials, oscillating and rotating movement

Wear with different shaft materials in rotational operation, as a function of the pressure

Wear with different shaft materials, oscillating and rotating movement

Wear for oscillating and rotating applications with shaft materials cf53 hardened and ground steel, as a function of the pressure.

Shaft materials

The friction and wear are also dependent, to a large degree, on the shaft material. Shafts that are too smooth increase both the coefficient of friction and the wear of the plastic bushings. The best shaft for iglide® X6 has a ground surface with an average roughness rms 16 - 32.

The graphs show the results of testing different shaft materials with plastic bushings made from iglide® X6.

The graphs show that iglide® X6 can be combined with various shaft materials.

Chemical resistance of iglide® X6 at room temperature [+68 °F]

Medium Resistance at 68°F
Alcohol +
Hydrocarbons, chlorinated +
Grease, oils without additives +
Fuels +
Weak acids +
Strong acids +
Weak alkaline +
Strong alkaline +
+ resistant      0 conditionally resistant      - not resistant

Effect of moisture absorption

Effect of moisture absorption on iglide® X6 plastic bushings


Electrical properties

Specific volume resistance < 105 Ωcm
Surface resistance < 105 Ω

Chemical resistance

iglide® X6plastic bushings have almost universal chemical resistance. They are only affected only by concentrated nitric acid and sulfuric acid. Due to its low moisture absorption, the material can be used in humid environments without problems. iglide® X6 is resistant to most typical detergents used in the food and packaging industries.

Radiation resistance

Plastic plastic bushings made from iglide® X6 are resistant to radiation up to an intensity of 2 x 105 Gy.y of 2 x 105 Gy

UV Resistance

Partially resistant against UV rays.


In a vacuum environment, iglide® X6 plastic bushings can be used virtually without restrictions. Outgassing takes place to a very limited extent.

Installation tolerances

iglide® X6 plastic bushings are oversized before being pressfit. After proper installation into a recommended housing bore, the inner diameter adjusts to meet our specified tolerances. Please adhere to the catalog specifications for housing bore and recommended shaft sizes. This will help to ensure optimal performance of iglide® plastic bushings.