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What are needle roller bearings and where are these things often used? What do these bearings look like? These bearings are essentially very thin and long cylinders that have needle-like rollers that are encapsulated in them. The needle-like rollers that are found in this kind of a roller bearing often have tapered points that are used to keep them in place however there are a few of these that are held in place not with the use of tapered points but with the help of the shaft itself.

These roller bearings have a rather wide contact surface and as such are used to help reduce the friction of some other rotating surface it is being used on. These roller bearings are rather compact and are composed of a shaft or an inner race, a needle cage which holds the needle rollers and keeps them in place, the thin, needle-like rollers and the outer race. These needle bearings can be used in a variety of machines and can even be seen used in a bicycle headset. The most common use for these needle roller bearings however is for certain engine components like pumps, rocker arm pivots, transmissions and for compressors.

You can also find that these roller bearings are used by rear wheel drive vehicles and are found in the drive shafts of such automobiles. If these vehicles are expected to operate on steep slopes or are longer vehicles, you can expect to find more of these bearings in their drive shafts.