Twin screw extruders often use tandem thrust cylindrical roller bearings as the main shaft bearings. This type of bearing has the characteristics of small radial cross-sectional size, compact structure, high axial load capacity, uniform load on each row of rollers, wear resistance, low vibration noise, and long service life, which is very suitable for the needs of parallel twin-screw extruders. Configuration method: Users can choose the appropriate number of bearing rows based on the screw center distance, space, and load size, such as two, three, four, five, six, seven, or eight series bearings. In addition, there are design considerations such as preload, radial guidance, elimination of tilt, fit tolerance, and bearing lubrication to ensure the correct operation and long life of the bearings.
