iglidur® P210 - Material data

Material table

General specification

Unit

iglidur® P

Test method

density

g/cm³

1,40

Colour

yellow

max. Moisture absorption at 23°C/50% room humidity.

% by weight

0,3

DIN 53495

max. total moisture absorption

wt.-%

0,5

Sliding friction coefficient, dynamic, against steel

0,07 - 0,19

pv value, max. (dry)

MPa x m/s

0,4

Mechanical specification

flexural modulus

MPa

2.500

DIN 53457

flexural strength at 20°C

MPa

DIN 53452

Compressive strength

MPa

maximum recommended surface pressure (20°C)

MPa

Shore D hardness

DIN 53505

Physical and thermal specification

Upper long-term application temperature

°C

+100

upper short-term application temperature

°C

+160

Lower application temperature

°C

-40

thermal conductivity

[W/m x K]

0,25

ASTM C 177

coefficient of thermal expansion (at +23°C)

[K-1 x 10-5]

DIN 53752

Electrical specification

Volume resistivity

Ωcm

> 1012

DIN IEC 93

surface resistance

> 1011

DIN 53482

Table 01: Material data

Download data sheet

diagram. 02: Permissible pv value for iglidur® P210

iglidur® M210 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.

Mechanical specification
The maximum recommended surface pressure represents a mechanical material parameter. It cannot be used to draw conclusions about the tribology. the compressive strength of iglidur® P210 plain bearings decreases with increasing temperatures. diagram 02 illustrates this correlation.

diagram. 03 shows the elastic deformation of iglidur® P210 under radial load. Under the maximum recommended surface pressure of 50 MPa, the deformation at room temperature is less than 3 %.

Maximum surface speed

m/s

rotating

oscillating

linear

continuous

0,7

short-term

1,4

Table 02: Maximum surface speed

Permissible sliding speeds
Bearings made of iglidur® P210 are maintenance-free bearings that have been developed for low to medium sliding speeds; the maximum values specified in Table 02 can only be achieved at very low surface pressure. The specified maximum speed is the speed at which friction can lead to an increase up to the permanently permissible temperature.

iglidur® P

Application temperature

below

-40°C

upper, long-term

+100°C

upper, short-term

+160°C

additional axial protection from

+50°C

Table 03: Temperature limits

Temperatures
Even with its highest long-term application temperature of +100 °C, iglidur® P210 is suitable for a wide range of applications. If even higher temperatures are required here, the bestseller iglidur® G with 130°C upper long-term application temperature is available. The temperatures prevailing in the bearing system also have an influence on the bearing wear; rising temperatures mean higher wear. Additional protection is required at temperatures higher than +50 °C.

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

iglidur® P

Dry

fat

oil

water

coefficient of friction µ

0,08 - 0,23

0,09

0,04

Table 04: coefficient of friction against steel
(Ra = 1 µm, 50 HRC)

Shaft materials
diagram. 06 shows an extension of the results of tests with different shaft materials that were carried out with iglidur® P210 plain bearings. iglidur® P210 generally shows very low wear with rotating movements under 1 MPa radial load. Only in combination with HR carbon steel shafts is the wear significantly higher. In general, wear is higher with rotation than with swivelling applications under the same load. This is only reversed from loads of 25 MPa (diagram. 07).

Shaft materials

Medium

Resistance

Alcohols

hydrocarbons

Greases, oils, not additivated

fuels

Diluted acids

strong acids

diluted bases

strong bases

+ resistant 0 conditionally resistant - not resistant

All data at room temperature [+20 °C]
Table 05: chemical resistance of iglidur® P

Chemical resistance
iglidur® P210 bearings have good resistance to chemicals. They are resistant to most lubricants. iglidur® P210 is not attacked by most weak organic and inorganic acids.

Maximum moisture absorption

at +23 °C/50 % room humidity.

0.3 % by weight

max. total moisture absorption

0.5 % by weight

Table 06: Moisture absorption

Moisture absorption
The moisture absorption of iglidur® P210 bearings is about 0.3 % in a normal climate. The saturation limit in water is 0.5 %. This low moisture absorption is well below the values of iglidur® G.

Diameter****d1 [mm]

shaft h9**[mm]**

iglidur® P210****E10 [mm]

housing H7**[mm]**

to 3

0 - 0,025

+0,014 +0,054

0 +0,010

> 3 to 6

0 - 0,030

+0,020 +0,068

0 +0,012

> 6 to 10

0 - 0,036

+0,025 +0,083

0 +0,015

> 10 to 18

0 - 0,043

+0,032 +0,102

0 +0,018

> 18 to 30

0 - 0,052

+0,040 +0,124

0 +0,021

> 30 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 to 180

0 - 0,100

+0,085 +0,245

0 +0,040

Table 07: Important tolerances according to ISO 3547-1 after press-fitting

Installation tolerances
iglidur® P210 bearings are standard bearings for shafts with a tolerance (recommended minimum h9) and are designed for press-fitting into an H7-toleranced mounting. After installation in a mounting with nominal dimensions, the inner diameter of the bearing with E10 tolerance adjusts itself. For certain dimensions, the tolerance deviates depending on the wall thickness (see product range).