The flanged iglide® G300 plain bearing meets a very wide range of requirements. iglide® G300 is the leading product in the iglide® family. It performs extremely well in every engineering field.
- More than 650 sizes available from stock
- High wear resistance
- Resistant to dirt and dust
- Cost-effective
- Self-lubricating and maintenance-free
Figure 1: igus iglide 300 plain bearing
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Typical application fields for the igus iglide 300 plain bearing
- Agricultural equipment
- Automation machinery
- Construction machinery
- Machine tools
- Fitness / physiotherapy equipment
- You will find many other application fields in our industry solution articles
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When should you use the igus iglide 300 plain bearing?
- When it must be economical while still delivering the performance required.
- For low to medium surface speeds
- When the bearing has to run on various shafts
- For rotary movement
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When should you not use the igus iglide 300 plain bearing?
- When the highest wear resistance is required.
- When chemical resistance is needed.
- If the temperature is continuously above +266 °F
- If it is used under water
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Dimensions and tolerances of the igus iglide 300 plain bearing
The installation dimensions and tolerances of the iglide® 300 plain bearing depend on the material and the wall thickness of the product. For every material, moisture absorption and thermal expansion must be taken into account. The iglide® 300 plain bearing absorbs little moisture and can be designed with minimal tolerances. As for wall thickness, the rule is: the thicker the bearing, the larger the tolerance must be.
2. Technical specifications of the igus iglide 300 plain bearing
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Dimensions of the igus iglide 300 plain bearing
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Manufacturing and installation tolerances of the igus iglide 300 plain bearing
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Physical and thermal properties of the igus iglide 300 plain bearing
- Maximum long-term operating temperature: 266.00°F (130°C)
- Maximum short-term temperature: 428.00°F (220°C)
- Minimum operating temperature: -40.00°F (-40°C)
- Thermal conductivity: 0.24 W/(m.K), test method ASTM C 177
- Coefficient of thermal expansion (at 23°C / 73°F): 9 K, test method DIN 53752-1.10-5
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Maximum permissible static surface pressure for the iglide 300 plain bearing
The application temperature strongly affects the properties of the plain bearing. The maximum short-term temperature is 428°F, which allows the iglide® G300 plain bearing to be used in heat treatment applications where the bearing carries no additional load. As the temperature rises, the strength of the iglide® G300 plain bearing falls. The chart shows this relationship. However, at the maximum long-term temperature of 266°F, the permissible surface pressure is still above 5,800 psi. The ambient temperature in the application also affects bearing wear. As the temperature rises, wear increases, and this effect becomes noticeable from 248°F.
Figure 2: Relationship between temperature and pressure
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Use in rotary applications with different shaft materials for the iglide 300 plain bearing
Friction and wear also depend to a large extent on the shaft material. A shaft that is too smooth increases both the coefficient of friction and bearing wear. For iglide® G300, a surface with a mean roughness of Ra = 0.8 µm is recommended. The diagram shows test results for different shaft materials with the iglide® G300 plain bearing. It is important to note that as pressure increases, the recommended shaft hardness increases. "Soft" shafts tend to wear more easily and therefore affect the clearance of the overall system. If the pressure exceeds 290 psi, it is important to recognise that the wear rate falls markedly with a harder shaft material. If the shaft material you intend to use is not shown in these test results, please contact us.
Figure 3: Wear test results for the iglide® G300 plain bearing
with different shaft materials
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