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Bâ– Structure and featuresIKO Shell Type Needle Roller Bearings are light-weight bearings with large load ratings. They employ a shell type outer ring made from a thin special-steel plate which is accurately drawn, carburized and quenched, thus providing the lowest sectional height among the needle roller bearings.There are two types of bearings available in this series; the caged type and the full complement type. The appropriate type can be selected according to the operating conditions. The caged type has a structure in which the needle rollers are accurately guided by the cage and thrust rings. It is useful for applications at high-speed rotation. The full complement type nee-dle roller bearing, on the other hand, is suitable for heavy-load applications at low-speed rotation.Since these bearings are press-tted into the housing, no xtures for axial positioning are needed. They are ideal for use in mass-produced articles that require economy, and have a wide variety of applications.Structures of Shell Type Needle Roller BearingsStandard Caged TypeCaged and closed end typeCaged type with two sealsOuter ringThrust ringNeedle Roller CageOuter ringThrust ringNeedle Roller CageOuter ringThrust ringNeedle Roller CageSealGrease retained full complement typeOuter ringNeedle RollerB2
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