NSK is a manufacturer of a range of rolling mill bearings which support the rolls that roll steel, and other primary metals, to a specified size and shape.

Dalian Hoyi Bearings Co., Ltd. is a manufacturer of rolling mill bearings. These four-row cylindrical roller bearings are used for applications of hot and cold rolling mills with designation codes from SKF, FAG and other main manufacturers.

Timken is a manufacturer of rolling mill bearings. Industries served include aerospace, agriculture, automotive, bearing manufacturers, cement and aggregate, coal, oil, gas, construction, consumer, gear drive, health, machine tools, mining and paper. A Timken catalog is available. Timken also manufactures their line of Fafnir ball, angular contact and ceramic bearings.

WD is a manufacturer of rolling mill bearings which are double row or four-row cylindrical and tapered roller bearings with precision higher than P6 standard.  P4 precision  is also available.

LYC is a manufacturer of rolling mill bearings used for accuracy sheet rolling mills. The dimensional and rotating accuracy of rolling mill bearings are required up to class P4 and P2.

RTR Bearing is a manufacturer of rolling mill bearings which support the rolls that roll steel, and other primary metals, to a specified size and shape.

BLG is a manufacturer of rolling mill bearings that consist of bearings for mill roll, pinion housing, reductor, universal joint, coiling machine, screw gear and rollgang. 

China Tianjin SSHB Bearing Co., Ltd. is a manufacturer of rolling mill bearings.