The NU306EJ is a single-row cylindrical roller bearing commonly used for high radial loads and speeds. The "EJ" designation typically denotes a high-capacity design featuring a pressed steel cage with specific roller-guiding flanges.
The principal metric dimensions for this bearing are:
- Inside Diameter (d): 30 mm
- Outside Diameter (D): 72 mm
- Width (B): 19 mm
- NU: Designates a single-row roller bearing with two integral flanges on the outer ring and a smooth, flangeless inner ring. This allows the shaft to move axially in both directions relative to the housing.
- E: Indicates an optimized internal design with reinforced or larger rolling elements for higher load capacities.
- J: Signifies a pressed steel cage, which guides the cylindrical rollers evenly