Everything Needs To Know About The Needle Roller Bearings
Choosing the right bearing for a specific purpose is
sometimes tricky and challenging as plenty of bearings available in the
market. Usually, bearings are available in three different types such as
roller bearings, needle bearings, and ball bearings. Among them, Needle Roller Bearings
is the lightest and smallest of the roller bearing family. This renders
them a particular advantage for some application especially those
requiring reduced space and weight. It accesses small and cylindrical
rollers, often called as the needle rollers, which minimize friction
between moving components. The needle rollers are actually the load
carrying components of this bearing. They are fixed between two races, a
shaft, and housing, or a single race and shaft based on the design of
bearing.
Benefits of the needle roller bearing
Below mentioned are the benefits of needle roller benefits when compared to other members of the bearing family.
- Ability to handle a larger and more rigid shaft in the given application
- Higher load capacity when compared to single row ball or roller bearings
- Lower costs particularly for the drawn-cup type than machined versions
- Amazing rolling characteristics within the small cross section
Different types of needle roller bearings
Below mentioned are the some of the types of bearing with the needle-shaped rolling elements.
Drawn cup needle roller bearings
One of the common types of needle roller bearings is Drawn Cup Needle Roller Bearings.
These bearings have a deep yet thin-walled outer ring that is drawn
from sheet metal. Commonly, the bore is left open but can be capped on
one side. Additionally, they are intended to fit perfectly over the
shaft. Without the inner ring, the smoother operation is achieved. It is
further divided into three types such as drawn cup with the cage and
open ends, full complement bearings with open ends and drawn cup with
the cage and one-closed ends.
Thrust needle roller bearings
Thrust Needle Roller Bearing
is highly accessed in the applications where the load is sustained
axially not radially. In fact, the rollers have axes that are
perpendicular to the bearing’s bore shaft. This type of bearing is
acceptable for shock loads and heavy axial. It will take up so much
space when compared to thrust washer.
Besides, alignment needle roller, bearings, drawn cup roller clutches, needle roller bearings with machined rings, etc. are available under this category.
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