3 Major Types of Ball Bearing Materials

Metal rollers are made in a few materials to match the various applications. Plastic, steel, and clay are the most well known choices. The different metal rollers have their own advantages and qualities, yet have similar four primary parts, which incorporates an enclosure, an external race, an internal race, and the ball. Here is an outline of the various materials:


Steel metal balls are quite a while number one and chiefly comprise of all-steel parts. Notwithstanding, they can likewise incorporate a phenolic confine or various sorts of steel for the balls and races.

They are the most useful linear roller bearings for the hard core applications and worked to work with very quick pivots each moment and the capacity to acknowledge as much as 25,000 pounds. Likewise, this kind of bearing is extremely exact and gives dependable leeway.

Furthermore, there are various makers of these items so the evaluating is extremely serious on the lookout.

However, these metal rollers really do have a couple of negatives. For example, the steel is normally boisterous and weighty, and may likewise need substance obstruction. To limit issues with upkeep utilizing a top notch lubricant is fundamental. In addition, steel is in danger of consumption in wet or damp conditions.


Ceramic metal balls are a standard decision in a large number of utilizations. This sort of unit is viewed as a mixture with balls in clay while the enclosure, inward race and external race are made of steel. The utilization of earthenware is perfect for low vibration and low commotion. Additionally, the working temperature stays cool even in case of the bearing running quick.

The fired material is significantly lighter, more unbending, and more erosion safe contrasted with the choices in steel. There is additionally the choice of working at high velocities and with lower coefficients. Fired is nonconductive which implies it is a more commonsense decision to use in electrical applications. It has a functioning temperature scope of up to 1,800° F.

The inconvenience of these metal balls is the expense. They are the most costly choice, so it very well might merit taking a gander at options, like those in plastic.


The plastic metal balls are the furthest down the line innovation to enter the market and deal a couple of advantages over clay and steel. It is especially lightweight and made with a plastic enclosure and races, while the genuine ball is a decision between treated steel, glass, or plastic. The total plastic set up is the ideal decision where clamor and weight is a basic variable; the glass is helpful for applications that should be liberated from metal. However, this choice ought not be utilized while the functioning temperature is probably going to pass 300° F.

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