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This N307ET bearing is a single row cylindrical roller bearing
Cone Reference Assembly Number lm 522546 90011 Light-Medium Series Cone Reference Standard Part Assembly Number
BSPG 12 25 SL Built-in Rack & Pinion Type Limited Motion Linear Slide Unit Width - 12mm Length - 25mm Stainless Steel
No Flange on Inner Ring Heavy 85mm - Bore Size Standard Design Machined Brass Normal Internal Clearance
NA4901 IKO Machined Needle Roller Bearing - 12X24X13MM 6010rsr This N307ET bearing is aThe NA4901 is a Standard Duty Open Type, Single Row Machined Needle Roller Bearing with an Inner Ring. The Inner Ring is separable from the Cage and Outer Ring, while the Outer Ring is fixed to the Cage and has an oil groove and an oil hole. Bearings with an Inner Ring are used when the shaft being used isn't heat treated and finished by grinding. In caged Needle Roller Bearings like this one, the Needles are precisely guided by the Cage to achieve