1, lubrication problems,
2, motor if overload operation.
3, the number of revolutions is too high.
4, long time running friction produced.
SEW gearboxes should be firmly installed on a stable horizontal foundation or base, and the oil in the oil drain tank should be able to be removed and the cooling air circulated smoothly. If the foundation is not reliable, the operation will cause vibration and noise, and promote bearing and gear damage. When the transmission joints have protrusions or gears, sprocket transmission, should consider installing guards, the output shaft is subjected to a large radial load, should be selected to strengthen the type.