JNS NA5904 Machined Ring Type Needle Roller Bearing With Inner Ring, 20mm bore x 37mm outside diameter x 23mm width. Equivalent to NTN NA5904.
Machined type needle roller bearings are high precision bearings which consist of machined outer ring with a complement of needle rollers retained and guided by a cage. The bearings feature a smaller cross-section, higher load-carrying capacity, greater rigidity. Therefore, they are useful in making machinery smaller and lighter.
JNS Needle Bearing Crossover Chart