Demek Bearing Group Co., Ltd.  

Product Name: Needle Roller Bearing Na4830 in Stock Model NO.: NA4830 Material: Bearing Steel Load Direction: Radial Bearing Inner Diameter: 150mm Outer Diameter: 190mm Width: 40mm Net Weight: 2.72kgs Rolling Body: Roller Bearings The Number of Rows: Single Outer Dimension: Medium and Large(120-190mm) Spherical: Non-Aligning Bearings Separated: Unseparated Trademark: demek&OEM, SKF, NSK, NTN Transport Package: Industry Package &OEM Package Specification: EUROPE STANDARD Origin: China HS Code: 84824000 Product Description Needle Roller Bearing NA4830 in StockBrief introduction for needle roller bearing NA4830Needle Rollerbearings NA4830use a roller style rolling element to reduce friction of a rotating surface.Needle Bearingshave a high load carrying capacity with a very small cross section height. They are available with or without an inner ring. The needle rollers are guided parallel to the axis using a cage retainer, thrust bearings can also be supplied with no retainer, which is referred to as a full complement of rollers.Needle Rollerbearing NA4830have a larger surface area that is in contact with the bearing outer surfaces compared to ball bearings. Additionally there is less clearance, or the difference between the diameter of the shaft and the diameter of the bearing, so they are much more compact. The typical structure consists of an inner race (or sometimes merely a shaft), a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race.Needle bearingsare heavily used in engine components such as rocker arm pivots, pumps, compressors, and transmissions.Needle Roller Bearing NA4830 is abearingwhich uses smallcylindrical rollers.The difference between aneedle roller bearingandroller bearingis the ratio of diameter and length of their rollers, when the ratio of the diameter and the length of roller of aroller bearingis between the interval of 0.1 to 0.4, thatroller bearingis called aneedle roller bearing. They are used to reduce thefrictionof a rotating surface.Radialneedle bearingsare cylindrical and use rollers parallel to the axis of the shaft. Thrust needle bearings are flat and use a radial pattern of needles.Full complement bearings have solid inner and outer rings and rib-guided cylindrical rollers. Since these bearings have the largest possible number of rolling elements, they have extremely high radial load carrying capacity and are suitable for particularly compact designs.More Picture for needle roller bearing NA4830More part number for needle roller bearings we can offer are as follows:UnitNo.Dimensions(mm)BasicLoadRatingsLimitingspeedWeightdFDBrminSCKNC0KNr/mingNA4900101422130.30.58.59.22000023NA4901121624130.30.59.410.91700026NA4902152028130.30.510.613.61400034NA4903172230130.30.51114.61200037NA4904202537170.30.82125.510000141NA49/22222839170.30.822.829.5950080NA4905253042170.30.823.631.5950088NA49/28283245170.30.824.433.5850097.7NA4906303547170.30.82535.58000101NA49/32324052200.60.830.547.57000158NA4907354255200.60.831.5507000170NA4908404862220.6143676000230NA4909455268220.61457385005500NA4910505872220.6147805000274NA49115563802511.5581004700393NA49126068852511.5601084300426NA49136572902511.5611124100456NA491470801003011.5841563800728NA491575851053011.5861623600775NA491680901103011.5891743400878NA491785100120351.1111123728001250NA491890105125351.1111425030001312NA49199511013031.1111626028001371NA4920100115140401.1212827029001900NA4922110125150401.1213229026002070NA4924120135165451.1218139023002860NA4926130150180501.51.520347020003900Please feel free to contact us if you have any demand for such bearings.