Choosing the right grease is a must when working with machines where the temperature gets a little hot. How do you go about choosing high temperature grease (จารบีทนความร้อน, term in Thai)?In this article, we will give you insights on what to look for in high temperature grease.
When it comes to choosing high temperature grease for hot lubricated equipment, there are many things to consider, such as the type of oil, type of thickener, oil viscosity index, and stability of the components formed by the oil and thickener. Other factors to consider are ambient temperature, additive composition and properties, atmospheric contamination, operating temperature, relubrication intervals, lubrication speed, and atmospheric contamination, to name a few.
What temperature is too high?
When it comes to describing temperature conditions, the concept of high temperature is relatively high. Bearings that run in a steel mill roll-out table system are exposed to high temperatures of varying degrees. The choice differs depending on the production needs and type of machine. Aside from heat-resistance, the type of grease to be used might depend on the exceptional load-carrying capability, mechanical stability, oxidation stability, pumpability, resistance to water wash, and the overall cost.
For high-temperature grease selection, one of the main things to consider is the nature of temperature and the reasons for product degradation inherent to the place you will be using it. There is a correlation between the workable temperature range of grease and the expected cost per pound. Some high temperature greases work perfectly at a particular temperature but may cost a lot of money.
The ability of grease to function for a long time is influenced by the reasons for degradation, such as oxidative stability, mechanical stability, and thermal stability. The two interrelated factors are oxidative and thermal stress. A high temperature application will most likely degrade through thermal stress along with oxidative failure, which is most likely to happen when the product gets in contact with air.
Applications of high temperature grease
High temperature grease is useful in various industries. It is perfect to lubricate various elements, such as the following:
- It is ideal for use in rolling mill bearings and roller bearings under specific conditions.
- It is useful in oven fan bearings.
- A special high-temperature grease is used for gluing machine roller bearings.
- It is used in hot-mix asphalt stations.
- High temperature grease is commonly used in oven racks and furnace hearth rollers.
- It is all the more beneficial in crushing and screening equipment.
Choosing the right grease for your machine needs can be really crucial as every machine has a specific set of greasing needs. That is why it is of utmost importance to conduct thorough research for you to come up with a particular grease that suits your needs, budget, and preference. Most of the time, high-temperature grease is applicable to many industries, but make sure you strictly adhere to the greasing requirements, care, and maintenance for you to get the most of what it can offer.