A gearbox is a mechanical component that serves as an intermediary to reduce the speed from the motor to the driven mechanism. Gearboxes are designed and manufactured according to standardized specifications. When using a gearbox, it is important to consider several factors to increase its lifespan, with lubrication of internal components being the most crucial aspect. In this post, mechanicalengblog.com will introduces to you 2 methods to lubricate for gearboxes:
How to select gearboxes lubrication?
1. Gearboxes lubrication by grease:
Grease lubrication is suitable for gearboxes with high power and operating at temperatures above freezing (temperatures below 10 degrees Celsius can cause grease to solidify), which can make lubrication challenging. The advantage of grease lubrication is that the heat generated by friction between the gears during operation does not diminish the viscosity of the grease. Grease lubrication is also effective at sealing, resulting in minimal leakage into the surrounding environment.
2. Gearboxes lubrication by Oil:
+ The choice of oil viscosity depends on the speed and load of the gearbox during operation. Gearboxes operating at slow speeds and high loads require oil with high viscosity, while those operating at high speeds and low loads require oil with low viscosity. The advantage of oil lubrication is that it ensures uniform lubrication on all moving surfaces. It has a cleaning effect, removing debris and metal particles. Oil lubrication allows for better control of lubrication levels and can be implemented with forced lubrication systems.
+ Gear transmission in gearboxes is typically lubricated by immersion in oil. The oil level should be sufficient to cover the height of the gear teeth.
+ For lubricating independent bearing units, a dipstick or oil scoop is commonly used to perform this task.
+ It is important to follow manufacturer guidelines and specifications when selecting the appropriate lubricant for a gearbox. Factors such as operating conditions, temperature, speed, and load should be considered to ensure optimal lubrication and prolonged gearbox life. Regular maintenance and periodic lubrication checks are also essential to maintain the performance and reliability of the gearbox.