|General features||Unit||iglide® A350||test method|
|Max. moisture absorption at 73°F/50% R. H.||Wt.-%||0,6||DIN 53495|
|Max. moisture absorption||Wt.-%||1,9|
|Coefficient of friction, dynamic, against steel||µ||0,10 - 0,20|
|P x v value, max. (dry)||psi x fpm||11,500|
|Modulus of elasticity||psi||290,100||DIN 53457|
|Tensile strength at 68° F||psi||15,950||DIN 53452|
|Permissible static surface pressure (68° F)||psi||8,702|
|Shore D hardness||76||DIN 53505|
Physical and thermal properties
|Upper long-term application temperature||°F||+356|
|Upper short-term application temperature||°F||+410|
|Lower application temperature||°F||-148|
|Thermal conductivity||[W/m x K]||0,24||ASTM C 177|
|Coefficient of thermal expansion (at 73° F)||[K-1 x 10-5]||8||DIN 53752|
|Specific volume resistance||Ωcm||> 1011||DIN IEC 93|
|Surface resistance||Ω||> 1011||DIN 53482|
FDA compliant and wear-resistant at high temperatures.
A very universal bushing for applications in the food and pharmaceutical industries. Thanks to the FDA conformity, iglide® A350 plastic bushings can be used wherever unpackaged foodstuffs are processed. With their tribological and thermal properties they are genuine all-rounders in the food industry.
iglide® A350 plastic bushings are suitable for low to medium speeds in both rotating and oscillating applications. Even linear motions can often be realized with iglide® A350.
With high sliding ,speeds, iglide® J or iglide® L250 can be interesting alternatives because the wear rate of these materials is better.
Its temperature resistance makes iglide® A350 an ideal material for a bushings in the food industry. The typical temperatures here reach up to +266°F, which is ideally covered by iglide® A350. Application temperatures up to +410°F are permitted on the short term. Please note that at temperatures over +284°F, the pressfit forces of the bushings may decrease and an additional axial securing device is recommended.
The wear rate of the iglide® A350 plastic bushings increases only minimally with higher temperatures. Tests have shown good wear results at +212°F on all tested shaft materials
The coefficients of friction of iglide® A350 on a steel shaft is in the mid range. The friction decreases at temperatures, which is quite unusual in dry operation. The graph shows the connection. The wear rates of all tests with iglide® A350 show good results at a low level. The most wear resistant ones are often found among the iglide® plastic bushings for food contact.
|Coefficients of friction µ||0,1 - 0,2||0,09||0,04||0,04|
The corrosion-resistant steels are rather considered natural for use in the food industry. The trials were therefore carried out especially on such materials. It has been shown that there is no clear favorite 440B and hard chrome-plated steel are both suitable. Hard anodized aluminum is also well suited for both linear and rotating movements.
|Hydrocarbons, chlorinated||+ to 0|
|Greases, oils, without additives||+|
|Specific volume resistance||> 1011 Ωcm|
|Surface resistance||> 1011 Ω|
iglide® A350 plastic bushings are resistant to diluted acids and alkalis, alcohols and detergents. They are also resistant to most lubricants. The iglide® A350 plastic bushings are resistant to common cleaning agents used in the food industry. iglide® A350 is affected by esters, ketones, chlorinated hydrocarbons, aromatics and highly polar solvents.
iglide® A350 plastic bushings are radiation resistant up to a radiation intensity of 2 x 102 Gy.
iglide A350® plastic bushings are well resistant against UV rays.
In vacuum, iglide® A350 degases. The application in vacuum is possible only for dry bushings.
iglide® A350 plastic bushings are electrically insulating.
The moisture absorption of iglide® A350 is low and can be disregarded when using standard bushings. Even at full saturation the iglide® A350 does not absorb more than 1.9% of water.
|Maximum moisture absorption|
|by +23 °C/50 % r. F.||0,6 weight-%|
|Max. water absorption||1,9 weight-%|
|Up to 3||0 - 0,025||+0,006 +0,046||0 +0,010|
|> 3 bis 6||0 - 0,030||+0,010 +0,058||0 +0,012|
|> 6 bis 10||0 - 0,036||+0,013 +0,071||0 +0,015|
|> 10 bis 18||0 - 0,043||+0,016 +0,086||0 +0,018|
|> 18 bis 30||0 - 0,052||+0,020 +0,104||0 +0,021|
|> 30 to 50||0 - 0,062||+0,025 +0,125||0 +0,025|
|> 50 to 80||0 - 0,074||+0,030 +0,150||0 +0,030|
iglide® A350 plastic bushings are standard bushings for shafts with h-tolerance (recommended minimum h9). The bushings are designed for press-fit in a housing with h7 tolerance. After the installation in a housing with nominal diameter, the inner diameter of the bushing automatically adjusts to the F10 tolerance.