Spherical roller bearings are non-separable double-row radial bearings, with barrel shaped rollers. Series: 21300, 22200, 22300, 23000, 23100, 23200, 23900, 24000, 24100 Application examples: heavy machinery (e.g. construction and mining machines), rolling mills, gear boxes, shaker screens, etc. The bearings with a suffix "W33" have a circumferential groove and three lubrication holes in the outer ring for lubrication. Contact us for more details Cindy Shandong Chik Bearing Co.,Ltd Email:[email protected] Mob/WhatsApp:0086 158 0668 3165 Skype: chikbearing002