23044CA/W33

23044CA/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. The "CA" represents the copper alloy cage, and "W33" indicates that the outer ring has a ring-shaped lubrication groove and three lubrication holes. The core function is to be a large-scale shaft system main support component that can withstand heavy loads and long-term operation under heavy-duty and long-cycle operating conditions, featuring high load-bearing capacity, automatic self-aligning compensation, and online lubrication maintenance capabilities. It can compensate for installation misalignment of 1.5° - 2° and shaft deflection deformation, and can withstand large radial loads and bidirectional medium axial loads. The cylindrical hole is suitable for standardized installation with a flanged shaft neck. The copper alloy cage has strong impact resistance and high operational stability, and is suitable for vibration conditions. The W33 structure of the outer ring supports online lubrication replenishment without stopping, extending the maintenance cycle and bearing life. Compared to the 23044CA model without W33, it is more suitable for heavy-duty equipment with high lubrication maintenance frequency. It is the preferred support solution for large-scale equipment with heavy-duty, strong vibration, high installation alignment accuracy requirements, and long-term stable operation, such as working rolls of metallurgical rolling mills, eccentric shafts of mining crushers, main shafts of cement vertical mills, input shafts of heavy reducers, and rotating mechanisms of port cranes. It can achieve a balance of high load-bearing reliability, stable operation, and online lubrication maintenance under restricted maintenance conditions.