iglidur® P210 - material data

The most important specifications at a glance

iglidur P210 plain bearings provide the user with versatile all-round bearings, which have proven to have above-average service life, primarily in pivoting applications at medium loads of up to 20MPa.

Descriptive technical specifications
Wear resistance at +23°C	- 🟧 🟧 🟧 🟧 ⬜️ +	More information on wear resistance
Wear resistance at +90°C	- 🟧 🟧 🟧 🟧 ⬜️ +
Wear resistance at +150°C	- 🟧 🟧 🟧 ⬜️ ⬜️ +
Slide property	- 🟧 🟧 🟧 🟧 🟧 +	Coefficient of friction, dynamic, against steel, dry: µ 0.07 - 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 it?

If you are looking for a universal plain bearing for use in damp environments
If you are looking for a very wear-resistant plain bearing for pivoting applications in the medium load range
When edge loads and impacts occur
When the surface pressure of iglidur J is not sufficient

When do I not use it?

If you are looking for a universal plain bearing with the widest possible range of dimensions -> iglidur G
When a plain bearing for very highly loaded pivoting applications is required -> iglidur Q, iglidur Q2
When temperatures greater than +100°C occur -> iglidur G, iglidur J350

Download data sheet

Temperature

Also thanks to its long-term application temperature of +100°C, iglidur P210 is suitable for a wide range of applications. If even higher temperatures are required, the bestseller iglidur G with a maximum long-term application temperature of 130°C is available. The temperatures prevailing in the bearing system also have an influence on bearing wear. The wear rises with increasing temperatures. Additional protection is required at temperatures higher than +50°C.

min. application temperature	Upper application temperature, long-term	Upper application temperature, short-term	In addition secure axially from
-40°C	+100°C	+160°C	+50°C

Permissible surface speeds

Plain bearings made from iglidur P210 are maintenance-free plain bearings that have been developed for low to medium surface speeds. The maximum values given in the table can only be achieved at very low surface pressures. The specified maximum speed is the speed at which an increase up to the continuous use temperature occurs due to friction.

Surface speeds of various iglidur materials

Information on pv value and lubrication

Maximum surface speeds [m/s]	Rotating	Oscillating	linear
permanent	1	0.7	3
Short-term	2	1.4	4

Permissible p x v values

Diagram 02: Permitted pv values for iglidur® P210

pv value, max. (dry)

MPa x m/s

0.4

Mechanical properties

The maximum recommended surface pressure is a mechanical material parameter. Conclusions about the tribology cannot be drawn from this. The compressive strength of iglidur P210 plain bearings decreases with increasing temperatures. Diagram 02 illustrates this relationship. Diagram 03 shows the elastic deformation of iglidur P210 under radial loads. Under the maximum recommended surface pressure of 50MPa, the deformation at room temperature is less than 3%.

Friction and wear

Like the wear resistance, the coefficient of friction μ changes with the load (diagram 04 and 05).

Coefficients of friction for iglidur P210 against steel (Ra = 1µm, 50HRC):

iglidur P210	dry	Greases	Oil	Water
Coefficient of friction µ	0.07-0.19	0.09	0.04	0.04

Shaft materials

Diagram 06 shows results of testing different shaft materials with plain bearings made from iglidur P210. For rotational movements at radial loads below 1MPa, iglidur P210 has generally very low wear. Wear is only significantly higher in combination with HR carbon steel shafts. Generally, rotational wear will be higher than for a pivoting application of equal load. This is only reversed at loads above 25MPa.

Shaft materials

Installation tolerances

iglidur P210 plain bearings are standard bearings for shafts with h-tolerance (recommended minimum h9). The bearings are designed for press fitting into a housing machined to a h7 tolerance. After installation into a nominal size housing, the inner diameter of the bearings automatically adjusts to the E10 tolerance. For certain dimensions, the tolerance deviates from this depending on the wall thickness (see product range).

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

Diameter d1 [mm]	Shaft h9 [mm]	iglidur P210 E10 [mm]	Housing H7 [mm]
up to 3	0 - 0.025	+0.014 +0.054	0 +0.010
> 3 up to 6	0 - 0.030	+0.020 +0.068	0 +0.012
> 6 up to 10	0 - 0.036	+0.025 +0.083	0 +0.015
> 10 up to 18	0 - 0.043	+0.032 +0.102	0 +0.018
> 18 up to 30	0 - 0.052	+0.040 +0.124	0 +0.021
> 30 up to 50	0 - 0.062	+0.050 +0.150	0 +0.025
>50 to 80	0 - 0.074	+0.060 +0.180	0 +0.030
>80 to 120	0 - 0.087	+0.072 +0.212	0 +0.035
> 120 up to 180	0 - 0.100	+0.085 +0.245	0 +0.040

Moisture absorption

The moisture absorption of iglidur P210 plain bearings is around 0.3% in standard climatic conditions. The saturation limit submerged in water is 0.5%. This low moisture absorption is well below the values of iglidur G.

Maximum moisture absorption (at +23°C/50% room humidity):

0.3% by weight

max. total moisture absorption:

0.5% by weight

Chemical resistance

iglidur P210 plain bearings have good resistance to chemicals. They are resistant to most lubricants. Most weak organic and inorganic acids do not attack iglidur P210.

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

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

Thermal conductivity

[W/m · K] 0.25

ASTM C 177

Coefficient of thermal expansion

(at +23°C) [K-1 · 10-5] 8

DIN 53752

Compressive strength

50MPa

Vacuum

In a vacuum, any moisture present will outgas. Use in a vacuum is only possible to a limited extent

Radioactive radiation

Plain bearings made of iglidur P210 can be used to a limited extent under radioactive radiation. They are resistant up to a radiation intensity of 3 · 10²Gy.