23056

23056 (common suffixes such as CC/W33, K/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 core function is to provide high rigidity self-aligning support for heavy industrial equipment shaft systems that are subjected to extremely large radial loads and bidirectional axial loads, where the shaft system is prone to flexure and misalignment and requires long-term online grease replenishment maintenance. These heavy industrial equipment include metallurgical hot rolling machines, mining ball mills, cement vertical mills, port heavy-duty cranes, and large heavy-duty reducers. It compensates for a maximum coaxiality deviation of ≤ 2° to adapt to installation and deformation caused by working conditions, and is equipped with a W33 lubrication groove + grease injection hole to achieve non-stop grease replenishment without stopping the machine. The K-type 1:12 conical hole can precisely adjust the radial clearance to adapt to the thermal expansion and contraction of the shaft system, and is suitable for heavy-duty, strong impact, low to medium speed, and highly demanding equipment shaft systems in terms of operation stability and maintenance convenience. It is a key supporting component with high load-bearing capacity, anti-shock capability, and ease of maintenance, with a basic rated dynamic load of approximately 1797kN, a static load of approximately 2850kN, a grease lubrication limit speed of approximately 800r/min, and an oil lubrication speed of approximately 950r/min. It is suitable for long-term reliable operation under heavy-duty, low-speed working conditions.