|General specifications||Unit||iglidur® HSD350||Testing method|
|Density||g/cm³||1,39||DIN EN ISO 1183–1|
|Max. moisture absorption at 23 °C/50% r.h.||% weight||0,6||ISO 175|
|Max. total moisture absorption||% weight||1,2||ISO 62|
|Coefficient of friction, dynamic, against steel||µ||0,07 - 0,23|
|pv value, max. (dry)||MPa · m/s||0,30|
|Flexural modulus||MPa||2.150||DIN EN ISO 178|
|Flexural strength at +20°C||MPa||67||DIN EN ISO 178|
|Max. recommended surface pressure (+20°C)||MPa||30|
|Shore-D hardness||77||DIN 53505|
Physical and thermal properties
|Max. application temperature long-term||°C||+180|
|Max. application temperature short-term||°C||+210|
|Min. application temperature||°C||-40|
|Thermal conductivity||[W/m · K]||0,24||ASTM C 177|
|Coefficient of thermal expansion (at +23 °C)||[K-1 · 10-5]||7||DIN 53752|
|Specific volume resistance||Ωcm||> 1013||DIN IEC 93|
|Surface resistance||Ω||> 1014||DIN 53482|
iglidur HSD350 was specially developed for use in applications where decontamination by steam (e.g. in autoclaves) is necessary. iglidur® HSD350 offers an excellent price-performance ratio.
With increasing temperatures, the compressive strength of iglidur® HSD350 plain bearings decreases. The diagram 02 shows this inverse relationship. The recommended maximum surface pressure is a mechanical material parameter. No conclusions regarding the tribological properties can be drawn from this.
Diagram 03 shows the elastic deformation of iglidur® at radial loads. At the maximum recommended surface pressure of 30 MPa, the deformation is less than 2%. A possible deformation could be, among others, dependant on the duty cycle of the load.
|iglidur® HSD350||Application temperature|
|In addition secure axially from||+130°C|
Diagrams 05 and 06 display a summary of the test results with different shaft materials conducted with plain bearings made from iglidur® HSD350. At 0.3 m/s and 1 MPa surface pressure, a wide variety of shafts are suitable and provide good wear results. Hard-anodised aluminium, free cutting steel, hard-chromed Cf53, 304 stainless steel and high grade steel exhibit low wear. If the shaft material you plan on using is not shown in these test results, please contact us.
|Alcohol||+ up to 0|
|Greases, oils without additives||+|
|Fuels||+ up to 0|
The moisture absorption of iglidur® HSD350 plain bearings is approximately 0.6% weight in standard climatic conditions. The saturation limit in water is 1.2 %weight. These values are so low that a moisture expansion need to be considered only in extreme cases.
Plain bearings made from iglidur® HSD350 are resistant up to a radiation intensity of 3 · 10² Gy.
When subjected to UV radiation, iglidur® HSD350 plain bearings change colour. However, hardness, compressive strength and wear resistance of the material do not change.
In vacuum, the moisture content is released as vapour. Due to its low moisture absorption, use in a vacuum is possible.
|Specific volume resistance||> 1013 Ωcm|
|Surface resistance||> 1014 Ω|
|Plain bearing F10|
|to 3||+0,000 +0,010||+0,006 +0,046||-0,025 +0,000|
|> 3 to 6||+0,000 +0,012||+0,010 +0,058||-0,030 +0,000|
|> 6 to 10||+0,000 +0,015||+0,013 +0,071||-0,036 +0,000|
|> 10 to 18||+0,000 +0,018||+0,016 +0,086||-0,043 +0,000|
|> 18 to 30||+0,000 +0,021||+0,020 +0,104||-0,052 +0,000|
|> 30 to 50||+0,000 +0,025||+0,025 +0,125||-0,062 +0,000|
|> 50 to 80||+0,000 +0,030||+0,030 +0,150||-0,074 +0,000|
|> 80 to 120||+0,000 +0,035||+0,036 +0,176||-0,087 +0,000|
|> 120 to 180||+0,000 +0,040||+0,043 +0,203||+0,000 +0,100|
iglidur® HSD350 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, in standard cases the inner diameter automatically adjusts to the F10 tolerances. For particular dimensions the tolerance differs depending on the wall thickness (please see product range table). In relation to the installation tolerance, the inner diameter changes with the absorption of humidity.