23056CAK/W33

23056CAK/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 (CA represents symmetrical rollers, K represents 1:12 conical holes, and W33 indicates the outer ring with a ring-shaped lubrication groove and 3 oil holes). The core positioning is for heavy-duty equipment shaft systems such as metallurgical rolling mills, mining crushers, cement vertical mills, port cranes, heavy-duty gearboxes, paper press rollers, etc., which are subjected to extremely large radial loads + medium axial loads in both directions, where the shaft system is prone to bending due to heavy loads or installation errors, and requires convenient disassembly and precise adjustment of clearance, as well as online lubrication maintenance. It provides reliable support with high rigidity, self-aligning performance, quick installation with conical hole mating locking sleeves, and supports online lubrication maintenance. The conical holes can be achieved through locking sleeves for interference connection without keys and clearance adjustment. The symmetrical rollers ensure uniform load distribution. The W33 lubrication groove/oil holes can achieve online lubrication without stopping the machine, suitable for low to medium-speed heavy-load impact conditions, capable of compensating for ≤2° coaxiality deviation, tolerating load fluctuations, and being particularly suitable for heavy-duty equipment shaft systems with strict requirements for installation convenience, adjustable clearance, online lubrication maintenance, and operational stability. It ensures operational accuracy, reduces failure risks, and extends maintenance cycles. It is a key basic component for heavy-duty equipment shaft systems to achieve efficient installation and long-term stable operation.