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Sliding bearings have excellent seismic performance and longer working life, which in rotating machinery widely applied. And because of its unique babbitt mechanical properties, is widely used in many large rotating machinery, a sliding bearing one of the most common materials. In their daily work, downtime due to bearing failure shut down, resulting in great economic losses often occur. Babbitt bearing on the common occurrence of failure causes and solutions made elaborate.
Sliding bearing babbitt loosening is one common fault, mostly from the metal substrate surface cleaning before pouring enough material hanging tin cause. Pouring temperature is not enough cause Babbit and matrix technology can not fully integrated, reduced adhesion at work are also prone to run loose. When babbitt loose with the substrate, the bearing will accelerate fatigue, loose parts and lubricants fleeing internal bearing alloy base makes rapid wear. Wear will increase with the gap, the gap with the base surface wear rate is proportional to the short term, can cause serious malfunctions.
Solution: Re-hang tin, pouring babbitt, tin-former should clear polish base surface rust, oil clean, casting alloy should pay attention to temperature not lower than 300 degrees Celsius.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7221CDB NSK | 105 | 190 | 36 |
| 7221BDB NSK | 105 | 190 | 36 |