All Inner ring anti-fracture self-aligning roller bearing (TL series) inner diameter 40-500 mm Long life self-aligning roller bearing for vibration machinery Inner diameter 40-190 mm Self-lubricating bearings (Lubricated series) Inner diameter 35-160 mm The inner diameter of the self-aligning roller bearing (standard series) is 20-320 mm The inner diameter of the self-aligning roller bearing (standard series) is 320-1590 mm Super wear-resistant self-aligning roller bearing (SWR series) inner diameter 40-240 mm