The normal service life of the WPWDK135-60-A worm gear reducer bearing is 20,000 to 30,000 hours (about 2.3 to 3.4 years, calculated based on 8,760 hours of continuous operation per year). The actual service life is greatly affected by factors such as working conditions and maintenance.
1. Core basis for life span reference
The supporting bearings of this type of reducer are mostly deep groove ball bearings or tapered roller bearings (suitable for 135 machine base, medium and heavy load conditions). The theoretical life corresponding to the rated dynamic load under industrial standards is about 30,000 hours.
The manufacturer's design life is based on 'rated load, rated speed, and standardized lubrication.' If the actual working conditions are close to the design values, the life can reach 25,000 to 30,000 hours; if the working conditions are severe, the life will be shortened to less than 20,000 hours.
2. Key factors affecting lifespan
Lubrication conditions: Use suitable lubricating oil (such as ISO VG220-320 gear oil), replace it regularly and keep the oil clean. The service life can be extended by 10% to 20%. Insufficient lubrication or deterioration of the oil may reduce the service life by more than 50%.
Load and speed: Long-term overloading (more than 1.2 times the rated load) or over-speed operation will increase bearing wear and significantly shorten the service life; if the load is stable and the speed is within the rated range, the normal life can be maintained.
Installation and maintenance: The shaft system is accurately aligned, the bearing installation pre-tightening force is reasonable, and regular inspections and tightening are carried out, and the service life is stable; large installation deviations and loose bolts lead to uneven stress on the bearings, which will significantly reduce the service life.
3. Practical suggestions for life span determination
When the running time approaches 20,000 hours, vibration and temperature monitoring need to be strengthened. If the bearing end temperature continues to exceed 75°C and the vibration acceleration exceeds 10m/s², it is recommended to replace the bearing in advance.
If the reducer is used for intermittent operation (daily operation ≤8 hours), the normal life can be extended to 30,000 to 40,000 hours. The core depends on the cumulative operating time rather than the service life.
