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Roll neck bearings mainly included four-row tapered roller bearings, four-row cylindrical roller bearings, two-row tapered roller bearings.

Four-row tapered roller bearings, mainly used for work rolls or intermediate rolls, carry both of radial laod and axial load at a time. Adjustment of internal clearance is not required, facilitating handing. Open type is also available. 

Fou-row cylindrical roller bearings, used for back-up rolls, have a superior large radial load capacity, and are suitable for high-speed rotation. Rolling accuracy can be improved by applying the tight fitting of the inner ring onto the rolling journal, and then applying the integral system grinding of the inner ring raceway. Additionally, the integral system grinding can be applied free adjustment of the bearing clearance. 

Two-row tapered roller bearings, used for back-up rolls, have a large contact angle, and can load a large axial load. 

The Single-Row cross roller Slewing Ring is composed of 2 seat-rings. It features compact in design, and light in weight. The rollers roll on the circular raceway , via which the axial force, radial force and tipping moment may be transmitted simultaneously . the clearance is small , usually  preload .

Thrust tapered roller bearings can accommodate single-direction axial load, and restrain single-direction axial displacement. They have much higher axial carrying-capacity than thrust cylindrical bearings; their limit rotational speed is a little higher than that of thrust cylindrical roller bearings.

Tapered roller thrust bearings of this type must be able to accommodate extremely heavy axial loads and also permit angular movement of the screw spindle with respect to the support. The bearings are therefore generally of the full complement type and have extremely long rollers of large diameter. To be able to accommodate the alignment movements of the chock without detrimental effect on bearing performance, the bearings have one sphered washer.