Description: The vibrator bearing is a core load-bearing and wear-prone component of the vibration motor / exciter in corn screening and impurity removal equipment. It is installed at both ends of the rotor shaft, supports the high-speed rotation of the eccentric blocks and continuously withstands high-frequency excitation forces and alternating impact loads. It is suitable for the dusty working conditions of corn raw material screening, ensuring that the vibration motor stably outputs the excitation force, maintaining the standard amplitude of the screening machine and enabling continuous corn impurity removal and grading. Ordinary motor bearings must not be used as substitutes.
Structural and Selection Characteristics
1. Type: Vibration-specific deep groove ball bearings and self-aligning roller bearings are commonly used.
With standard C3/C4 increased radial clearance to compensate for operating temperature rise and shaft deformation and to stop bearing seizure caused by overheating.
Material: High-purity bearing steel with heat-treated and strengthened raceways; a brass solid cage is preferred, which is impact-resistant and not easy to break under long-term vibration.
Sealing configuration: with double skeleton oil seals and labyrinth seals to block the intrusion of corn bran and dust into the bearings.
Lubrication: Compatible with high-temperature lithium-based grease; an oil injection channel is reserved in the bearing housing to support online grease replenishment and maintenance.
Functions
1. It supports the high-speed rotation of the shaft and eccentric blocks and continuously bears periodic impact loads.
2. It reduces rotational friction resistance, controls the temperature rise of the vibration motor and reduces operating noise.
3. It resists high-frequency alternating vibration and stop early pitting and spalling failure of the bearings.
4. It synchronous operation of the dual motors and stop fluctuation of the screening amplitude and material deviation.
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