23056/W33

23056/W33 is a double-row self-aligning roller bearing with an inner diameter of 280mm, an outer diameter of 420mm, and a width of 106mm. The outer ring is equipped with a W33 ring-shaped lubrication groove and an oil injection hole, enabling on-site continuous lubrication for the equipment without stopping its operation. It has excellent self-aligning capability, capable of compensating for ≤2° of shaft alignment deviation. The core function is to provide high rigidity, strong load-bearing capacity, self-aligning, and easy maintenance for the shaft systems of heavy industrial equipment such as metallurgical rolling mills, mining grinding equipment, cement vertical mills, port heavy lifting machinery, large heavy-duty reducers, etc., which are subjected to extremely large radial loads and bidirectional axial loads, have an easily misaligned shaft system, and have strict requirements for the convenience of continuous operation and lubrication maintenance of the equipment. It can withstand heavy loads, strong impacts, and fluctuations in working conditions, is compatible with low to medium speeds and harsh working conditions for long-term continuous operation, and is a key supporting component for ensuring the operational stability of heavy-duty core equipment shaft systems and reducing the frequency of equipment shutdown and maintenance.