iglidur® A160 - material data

The most important specifications at a glance

iglidur A160 plain bearings are characterised by extreme media resistance at a low cost. Tribologically optimised, the material can be used in temperatures up to +90°C and also conforms to demands of the food processing sector. The profile of properties is completed by the "optical detectability", i.e. the blue colour, often required in the industry.

Descriptive technical specifications
Wear resistance at +23°C	- 🟧 🟧 🟧 ⬜️ ⬜️ +	More information on wear resistance
Wear resistance at +90°C	- 🟧 ⬜️ ⬜️ ⬜️ ⬜️ +
Wear resistance at +150°C	- 🟧 ⬜️ ⬜️ ⬜️ ⬜️ +
Sliding properties	- 🟧 🟧 🟧 🟧 ⬜️ +	Coefficient of friction, dynamic, against steel: µ 0.09 – 0.19
Wear resistance under water	- 🟧 🟧 🟧 ⬜️ ⬜️ +
Media resistance	- 🟧 🟧 🟧 🟧 ⬜️ +	More information on media resistance
Resistant to edge pressures	- 🟧 🟧 🟧 ⬜️ ⬜️ +
Resistant to shock and impact loads	- 🟧 🟧 🟧 🟧 ⬜️ +
Dirt resistance	- 🟧 🟧 🟧 🟧 ⬜️ +

When do I use this material?

When a plain bearing with maximum media resistance in the normal temperature range is required
When a very cost-effective plain bearing with high media resistance is desired
When a material compliant with Regulation (EU) No. 10/2011 is required
When an FDA-compliant material is required

When should I not use this material?

When a universal material for the food industry is required -> iglidur A180, iglidur A181
When a highly media-resistant plain bearing for use at temperatures above +90°C is being sought -> iglidur A500, iglidur X
When a low-cost material with high wear resistance in dry operation is required -> iglidur R

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Temperatures

The compressive strength of iglidur A160 plain bearings decreases with increasing temperatures. The temperatures prevailing in the bearing system also have an influence on bearing wear. Additional protection is required at temperatures higher than +60°C.

Further information on temperature

min. application temperature	Upper application temperature, long-term	Upper application temperature, short-term	In addition secure axially from
-50°C	+90°C	+100°C	+60°C

Permissible surface speeds

iglidur A160 was developed for low surface speeds. Maximum speeds of up to 0.5m/s (rotating) and 2.0m/s (linear), respectively, are permissible during continuous dry operation. The values given in the table indicate the limits at which frictional heat causes an increase up to the continuously permissible temperature. In practice, these limit values cannot always be achieved due to interactions.

Surface speeds of various iglidur materials

Maximum surface speeds [m/s]	Rotating	Oscillating	linear
Long-term	0.5	0.4	2.0
Short-term	0.7	0.6	3.0

Permissible pv values

pv value, max. (dry)

MPa - m/s

0,25

Information on pv value and lubrication

Mechanical properties

The compressive strength of iglidur A160 plain bearings decreases with increasing temperatures. Diagram 02 illustrates this relationship. The maximum recommended surface pressure represents a mechanical material parameter. Conclusions about the tribology cannot be drawn from this. Diagram 03 shows the elastic deformation of iglidur A160 under radial loads. Under the maximum recommended surface pressure of 15MPa, the deformation is less than 3%. Plastic deformation can be neglected up to this radial load. However, it is also dependent on the duty cycle of the load.

Friction and wear

Coefficient of friction and wear resistance change with the application parameters. With iglidur A160 plain bearings, altering the coefficient of friction µ as a function of surface speed has less effect. With increasing load, however, the coefficient of friction decreases significantly. The optimum shaft roughness with regard to the coefficient of friction is 0.6 - 0.7Ra.

Coefficients of friction against steel (Ra = 1μm, 50HRC):

iglidur A160	dry	Greases	Oil	Water
Coefficient of friction μ	0.09 - 0.19	0.08	0.03	0.04

Shaft materials

Diagram 06 shows an extract of the results of tests with different shaft materials carried out with iglidur A160 plain bearings in dry operation. For rotational applications with low loads, the most interesting, media and corrosion-resistant shaft materials 304 stainless steel, high grade steel and hard-chromed steel prove to be particularly good mating partners. On high grade steel shafts, however, the wear increases most rapidly with the load (diagram 06). On Cf53 shafts, the wear in pivoting applications is exemplary compared to rotating applications. As with many other iglidur materials, wear is higher in rotating than in pivoting applications (diagram 07).

Further information on shaft materials

Chemical resistance

iglidur A160 plain bearings can be used under a wide range of environmental conditions and in contact with numerous chemicals. The table provides an overview of the chemical resistance of iglidur A160 plain bearings at room temperature.

All data at room temperature [+20 °C], + resistant 0 conditionally resistant - non-resistant

Medium	Resistance
Alcohols	+
Greases, oils without additives	+
Hydrocarbons	+
Fuels	+ up to 0
Strong alkalines	+
Strong acids	+
Diluted alkalines	+
Diluted acids	+

Installation tolerances

iglidur A160 plain bearings are standard bearings for shafts with h-tolerance (recommended minimum h9). The bearings are designed for press-fit into a housing machined to a H7 tolerance. After being assembled into a nominal size housing, the inner diameter automatically adjusts to the E10 tolerances.

Important tolerances according to ISO 3547-1 after press-fit:

Diameter d1 [mm]	Housing H7 [mm]	iglidur A160 plain bearing E10 [mm]	Shaft h9 [mm]
up to 3	+0.000 +0.010	+0.014 +0.054	-0.025 +0.000
> 3 up to 6	+0.000 +0.012	+0.020 +0.068	-0.030 +0.000
> 6 up to 10	+0.000 +0.015	+0.025 +0.083	-0.036 +0.000
> 10 up to 18	+0.000 +0.018	+0.032 +0.102	-0.043 +0.000
> 18 up to 30	+0.000 +0.021	+0.040 +0.124	-0.052 +0.000
> 30 up to 50	+0.000 +0.025	+0.050 +0.150	-0.062 +0.000
>50 to 80	+0.000 +0.030	+0.060 +0.180	-0.074 +0.000
>80 to 120	+0.000 +0.035	+0.072 +0.212	-0.087 +0.000
> 120 up to 180	+0.000 +0.040	+0.085 +0.245	-0.100 +0.000

Thermal conductivity

[W/m · K] 0.30

ASTM C 177

Coefficient of thermal expansion

(at +23°C) [K-1 · 10-5] 11

DIN 53752

Moisture absorption

The iglidur A160 plain bearing absorbs up to 0.1% of water through humidity (+23°C, 50% relative humidity); when saturated with water, only 0.1% is equally absorbed.