RNA6913 IKO Machined Needle Roller Bearing - 72X90X45MM w638/3.zz.SKF This NJ409-M1 bearing is a

This NJ409-M1 bearing is a single row cylindrical roller bearing

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This LLRJ45 is a light

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RNA6913 IKO Machined Needle Roller Bearing - 72X90X45MM w638/3.zz.SKF This NJ409-M1 bearing is aThe RNA6913 is a Standard Duty Open Type, Double Row Machined Needle Roller Bearing with an oil groove and oil hole in the Outer Ring. This Bearing has no Inner Ring, meaning the Needle Rollers are mounted directly onto the shaft. As such, the Bearing has better running accuracy as it isn't affected by assembling an Inner Ring with the shaft. In caged Needle Roller Bearings like this one, the Needles are precisely guided by the Cage to achieve ideal