42630 is an older Chinese model designation corresponding to the newer model NJ2330; it is a cylindrical roller bearing with a single rib on the inner ring, featuring core dimensions of 150×320×108 mm and a weight of approximately 46 kg.
Basic Parameters
Inner Diameter (d): 150 mm
Outer Diameter (D): 320 mm
Width (B): 108 mm
Weight: Approx. 46.0 kg
Bearing Type: Cylindrical roller bearing (NJ type; single rib on inner ring; capable of supporting unidirectional axial loads)
Corresponding New Model: NJ2330 (GB/ISO standard)
Typical Load and Speed Reference
Basic Dynamic Load Rating (Cr): Approx. 1020–1070 kN
Basic Static Load Rating (Cor): Approx. 1400–1480 kN
Limiting Speed (Grease Lubrication): Approx. 1700 r/min
Limiting Speed (Oil Lubrication): Approx. 2000 r/min
Chamfer Radius (r min): 4–6.5 mm
Mounting Dimensions Reference
d_a min: 166–168 mm
d_a max: 186–190 mm
D_a max: 302–304 mm
r_a max: ≤ 3 mm
Note: Specific load, speed, and tolerance values should be confirmed based on the brand, cage material, internal clearance class (e.g., C3), and lubrication method; slight variations may exist between manufacturers.
