The life span of the main shaft device of bucket elevator is determined by the life span of the drum and the main shaft. However, in our country's production practice, life span of the main shaft is guaranteed, measures are adopted as follows:

1. Selection and design calculation should consider the fatigue failure mechanism design and try to reduce the stress concentration;
2. Put forward reasonable technological requirements and technical conditions of the spindle, and to ensure that these requirements and conditions will be strictly enforced;
3. Confirm the vertical bucket elevator main spindle failure mechanism is fatigue damage;

4. Inspection of the spindle and performance testing routine, so as to ensure the reliable performance of the spindle.
Hope above mentioned are helpful. As a professional manufacturer of material handling equipment supplier, PK Machinery always provide superior product quality and considerate service, any interest,please feel free to contact: www.pkmachinery.com