저 토크 볼 베어링을 사용하면 에너지 효율성이 향상되고 운영 비용이 최소화되며 이산화탄소 배출이 감소합니다. 기계 제조업체와 공장 관리자가 이러한 이점을 활용할 수 있도록 소형 베어링 전문가 인 SMB 베어링의 전무 이사 인 Chris Johnson은 하나의 중요한 토크 계수 인 베어링 윤활의 중요성을 설명합니다. 

볼 및 롤러 베어링과 같은 롤링 요소 베어링은 유체 베어링 대안보다 훨씬 낮은 마찰에서 기계의 기능을 수행하는 데 필요한 부하를 지원합니다. 이는 장비를 구동하는 데 필요한 전력을 줄여 부하 이동 비용과 장비 작동에 필요한 에너지를 낮 춥니 다. 

Bearing torque is the force required to overcome internal friction to start or maintain rotation of the bearing. This frictional torque is generally increased with a larger bearing, increased load or increased lubricant drag. Let’s focus on the latter. 

So, how do you get it right? Discussing lubrication options with your bearing supplier can help you to choose the correct option, as there are several oils and greases to choose from. 

Many applications require the bearing to spin easily with extremely low frictional torque, without generating excess heat. Dry lubricant is one way of meeting these low torque requirements. Despite being solid, dry lubricants can reduce friction between two surfaces without the need for oil or grease. Using very low viscosity grease with a reduced fill can also achieve a similar outcome. However, this will also permit much higher running speeds. 

When choosing between oils or greases, it’s important to remember that torque levels for a greased bearing are briefly higher to start with, when the equipment begins running. This is because the grease takes a short time to ‘run in’ and be distributed inside the bearing. It’s most likely not a problem for many continuous applications but this could cause problems for stop start machinery. 

Instrument oils are another option for low torque requirements. They will often produce very low torque levels especially at very low speeds. However, it’s worth mentioning the difference between these and very low torque greases is actually quite small, particularly if a low grease fill is used. This combination may give an increase of only 20 percent in frictional torque over the Aeroshell 12 instrument oil. 

For higher torque requirements, high viscosity lubricants can significantly increase bearing torque due to greater lubricant drag. The fill level is also a huge factor in the frictional coefficient, with higher fills resulting in stiffer bearing rollability. For example, robotics applications require precise and predictable movements of robot arms. It is often the fill level in robotics bearings that is trialled during product development, to achieve the ideal frictional coefficient, enabling smooth and precise movements. 

선택할 수있는 오일과 그리스가 많으며, 오염, 속도 또는 내식성과 같은 토크 외에 고려해야 할 다른 요소가 있습니다. 올바른 윤활 유형, 올바른 충진 레벨 및 부하 고려를 통해 특정 응용 분야에 맞는 올바른 마찰 토크로 베어링을 공급할 수 있습니다.