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Needle Roller Bearings

Needle Roller Bearings

A good choice for applications where radial space is limited, needle roller bearings consist of caged, small-diameter cylindrical rollers that glide between the raceways on the outer and inner rings, or between the outer raceway and the shaft. Because they use small-diameter rolling elements, needle roller bearings have a thinner profile than cylindrical roller bearings or ball bearings. They are recommended for applications with high radial loads (where the load is perpendicular to the shaft) and high rotational speeds.

Roller bearings use cylindrical rolling elements that distribute loads over a wide surface area, which allows roller bearings to tolerate higher loads than ball bearings. To ensure proper functioning, bearings should be lubricated regularly.

General Purpose Bearings

Also known as drawn cup needle roller bearings, these general purpose bearings have no inner ring and occupy less radial space than a point-contact ball bearing with similar load capacity.

Inch

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Metric

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High-Precision Bearings

These bearings are manufactured to tighter tolerances and the cages have a smooth surface for less friction, providing longer service life and lower lubrication requirements than general-purpose bearings.

Metric

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High-Precision Bearings with Inner Raceway

These are high-precision bearings are manufactured to tight tolerances and have an inner raceway for applications in which the shaft is not suitable to serve as an inner raceway.

Metric

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Inner Raceways for Needle Bearings

Insert one of these inner rings when a shaft is not suitable for use as the raceway or when a wider inner ring is needed to accommodate axial displacement of the shaft in relation to the housing.

Metric Measurement System