I have discussed with Aey san, He explain to you.
Point is as follows,
1.Root cause
During last visitation to customer with ATC of Aey, we commented to customer that there was misalighment of pulley.
So that one of factor was the pulley misalignment.
I guess that other potential factor for early breakage are improper belt tension/dust/partial replace of the belt.
Probably main root cause is an insufficient belt tension.
If early breakage of the belt caused by improper belt operation, they will be able to use Green belt.
2.Suitable belt specification
I recommend REC belt for that case. but BMT can't produce CX165. Only BCI produce it.
However BCI producing it as press method. So that it costly and probably long lead time is required.
But potential of life improvement by CX165 is more than 1 year.
If you have any question, please ask to Aey san,
Regards,