23044CAK/W33

23044CAK/W33 is a double-row self-aligning roller bearing with an inner diameter of 220mm, an outer diameter of 340mm, and a width of 90mm. Its core function is to be suitable for large shaft systems that require heavy load, strong vibration, long-term continuous operation, and frequent on-site grease replenishment maintenance. The "CA" in its name stands for copper alloy cage, which ensures impact resistance and stable operation. The "K" indicates that the inner ring has a 1:12 conical hole that can be paired with a locking sleeve (such as H3044) to achieve precise clearance adjustment and convenient assembly and disassembly on-site. The "W33" refers to the structure design of the outer ring with a circular lubrication groove and 3 lubrication holes, which supports on-site grease replenishment without stopping the machine. This bearing can compensate for 1.5° - 2° of installation misalignment and shaft deflection deformation. It can withstand large radial loads and bidirectional medium axial loads. The high-carbon chromium bearing steel material, after quenching and heat treatment, has outstanding wear resistance and fatigue resistance. It is particularly suitable for scenarios in equipment such as metallurgical rolling mills, mining crushers, cement vertical mills, heavy reducers, and port cranes where there is limited installation space, high requirements for clearance control, long-term stable operation, and convenient maintenance. Compared to models without the W33 structure, it better meets the continuous lubrication requirements under heavy-load conditions. Compared to the cylindrical hole models, it is more conducive to on-site assembly adjustment and rapid replacement. It also combines the comprehensive capabilities of high load-bearing, automatic self-aligning, flexible installation adjustment, and long-term lubrication maintenance. It is an ideal supporting component for heavy-load conditions that balances assembly flexibility and operational convenience.