This single row cylindrical roller bearing carries a solid brass cage (M1) and uses the reinforced E design for increased load capacity within its envelope. It has two ribs on the outer ring and one rib on the inner ring, forming a semi-locating configuration that allows axial displacement in one direction while providing guidance in the other. Bore diameter is 70.0 mm, outside diameter 150.0 mm, width 51.0 mm, and net mass is 3.985 kg. Limiting speed is rated at 8200 1/min, with a reference speed of 3800 1/min. The C3 radial internal clearance accommodates thermal expansion and interference fits, making the bearing suitable for applications where the shaft or housing experiences moderate temperature rise during operation. The separable inner ring and outer ring assembly typical of the NJ type simplifies mounting and dismounting, while the semi-locating design permits axial float on the non-ribbed side, useful where thermal growth along the shaft must be compensated without inducing axial preload.