iglidur® R - Material data

Maximum surface speed

m/s

rotating

oscillating

linear

continuous

0,8

0,6

3,5

short-term

1,2

1

5

Table 02: Maximum surface speed

Permissible sliding speeds
iglidur® R plain bearings are suitable for high sliding speeds. For linear movements, short-term speeds of up to 10 m/s are permissible! Here too, the specified maximum values can only be achieved under the lowest pressure loads. The specified values show the speed at which friction causes an increase up to the limit of the permanently permissible temperature.

iglidur® R

Application temperature

lower

- 50 °C

upper, long-term

+ 90 °C

upper, short-term

+ 110 °C

additional axial protection from

+ 50 °C

Table 03: Temperature limits for iglidur® R

Temperatures
The compressive strength of iglidur® R plain bearings decreases with increasing temperatures. diagram 02 illustrates this correlation. The temperatures prevailing in the bearing system also have an influence on bearing wear, and additional protection is required at temperatures higher than +50 °C.

Medium

Resistance

Alcohols

hydrocarbons

Greases, oils, not additivated

fuels

Diluted acids

0 to -

strong acids

-

Dilute bases

strong bases

+ to 0

+ resistant 0 conditionally resistant - not resistant

Table 05: chemical resistance of iglidur® R

Chemical resistance
iglidur® R plain bearings can be used under a wide range of ambient conditions and in contact with numerous chemicals. Table 05 provides an overview of the chemical resistance of iglidur® R plain bearings at room temperature.

**
Electrical specification

Volume resistivity

> 1012 Ωcm

surface resistance

> 1012 Ω

Radioactive radiation
Bearings made of iglidur® R are resistant to radiation up to a radiation intensity of 3 x 10² Gy.

Maximum moisture absorption

at +23°C/50% room humidity.

0.2% by weight

max. total moisture absorption

1.1 % by weight

Table 06: Moisture absorption of iglidur® R

Moisture absorption
The moisture absorption of iglidur® R bearings is about 0.2 % in a normal climate. The saturation limit in water is 1.1 %. This must be taken into account under appropriate operating conditions.

Diameter****d1 [mm]

shaft h9**[mm]**

iglidur® R****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 for iglidur® R plain bearings according to ISO 3547-1 after press-fitting

Installation tolerances
iglidur® R bearings are standard bearings for shafts with tolerance (recommended minimum h9). The bearings are designed to be pressed 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 from this depending on the wall thickness (see product range).