Caged Needle Bearing For Automobile Components , Radial Needle Bearing

K , NA , NKI , RNA , NK , HK , BK Type Of Needle Roller Bearings

Product Details

A needle roller bearing is a bearing which uses small cylindrical rollers. They are used to reduce friction of a rotating surface.

Needle bearings have a large surface area that is in contact with the bearing outer surfaces compared to ball bearings. Additionally there is less add clearance (difference between the diameter of the shaft and the diameter of the bearing) so they are much more compact. The typical structure consists of a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race (sometimes the housing itself).

Radial needle bearings are cylindrical and use rollers parallel to the axis of the shaft. Thrust needle bearings are flat and use a radial pattern of needles.

Needle roller bearings have a high load carrying capacity in addition to their low cross-section and stiffness. They are especially suitable for bearing arrangements where radial space is limited. Because needle roller bearings only carry pure radial load and cannot limit the axial displacement of shaft relative to the housing. It is important to ensure that inner ring axis and outer ring axis must be aligned during mounting the bearings.

Applications:

Needle 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.

Structure Design

ZHEJIANG TOP BEARINGS CO., LTD. is a manufacturer and distribution of sliding bearings. Our products have been widely applied to more than 30 industries like automobile, engineering machinery, metallurgy, water conservancy and hydroelectric power and mechanical manufacturing. Also we can design for customer's specific requirement.

We have reformed boldly, absorbed social elites through strengthening talent training, fully implemented modern management mechanism and new marketing strategy and been dedicated to long-term development of self-lubricating bearing industry. To control quality strictly, we set up a complete quality management system (ISO9001 and ISO/TS16949) in the quality policy of “Top Quality, Top Credit, Sustainable Growth”. Our quality and performance have reached advanced level.

To expand more markets, stand on the word and meet diversified requirements of customers, we are actively expanding and integrating with international markets. Now our products are available in more than 20 countries and regions in Western Europe, America and Southeast Asia. We’ll strengthen industrial horizontal integration further, create scale effect, open up emerging fields and develop industrial advantages to realize our strategic target and create a bright future with friends.

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