IXIN Bearing Limited is a manufacturer of cam followers that feature superfinishing surface grinding, precision grade P0-P5, and come in various structures. Stud type track rollers come in standard, inch size, eccentric type and heavy load type. Yoke type track rollers are also available.

SLS Bearing is a manufacturer of cam followers. Non-standard dimensions or specs of needle bearings are available. Cam followers are used in automobiles, vehicles, motorcycles, engineering equipment, electro-motive tools, textile and printing machinery, and OA equipment.

Yunfan Bearing is a manufacturer of cam follower bearings. Offerings include stud type track rollers (inch series), yoke type track rollers (sealed, without axial guiding), yoke type track rollers (inch series), and yoke type track rollers with axial guiding.