bearing needle roller

Introduction of Cylindrical Roller Bearing

A cylindrical roller bearing, also known as a rolling bearing,is a bearing which carries a load by placing rollers between two bearing rings. The relative motion of the pieces causes the round elements to roll with very little rolling resistance and with little sliding.

One of the earliest and best-known rolling-element bearings are sets of logs laid on the ground with a large stone block on top. As the stone is pulled, the logs roll along the ground with little sliding friction. As each log comes out the back, it is moved to the front where the block then rolls on to it. It is possible to imitate such a bearing by placing several pens or pencils on a table and placing an item on top of them. 

A rolling element rotary bearing uses a shaft in a much larger hole, and cylinders called "rollers" tightly fill the space between the shaft and hole. As the shaft turns, each roller acts as the logs in the above example. However, since the bearing is round, the rollers never fall out from under the load.

Rolling-element bearings have the advantage of a good tradeoff between cost, size, weight, carrying capacity, durability, accuracy, friction, and so on. Other bearing designs are often better on one specific attribute, but worse in most other attributes, although fluid bearings can sometimes simultaneously outperform on carrying capacity, durability, accuracy, friction, rotation rate and sometimes cost. only plain bearings are used as widely as rolling-element bearings.

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Application

Cylindrical roller bearings are heavily used in automobile components such as rocker arm pivots, pumps, compressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each U joint) and often more if it is particularly long, or operates on steep slopes.
 

Full Models of Standard Needle Roller bearing

Non-Standard Needle Roller bearing

1) As for the particularity of the non-standard bearing,this product series can not be list.

2) You can send your demand or blueprint to us, our experts will design non-standard bearing for you.

3) Products can also be produced according to the samples.

about us

We are a professional manufacturer and exporting supplier on various kinds machinery parts for over 14 years already.Our products covering slide bearings, needle roller bearings,ball transfer bearings and other machienry hardware fittings.

1) Outer cage grinding line

2) Rollers grinding automatic line

3) Ultrasonice cleaning before assembly

 4) Packing: cartons and plywooden case

 5) Different delivery ways

We also supply various kinds of slide bearings: