NTN 22224EMKW33C3 SPHERICAL ROLLER BEARING

Massive brass cage, C3 radial clearance, optimized internal geometry and ULTAGE technology: This spherical roller bearing from the NTN brand combines robustness, stability and performance. It is designed for high loads, high speeds and extreme operating conditions.

Features:
This spherical roller bearing is specifically engineered for high load uptake under demanding operating conditions. The solid, roller-centred brass cage provides stable guidance and reduces internal friction. The absence of a fixed centre flange and a guide ring improves lubricant circulation and prevents blockages caused by thermal expansion. The C3 radial clearance compensates for these expansions efficiently and ensures smooth running. Thanks to the tapered bore, mounting is simplified and allows a precise adjustment of the bearing clearance. The surrounding profile of the pockets increases the stability of the rollers, even under heavy mechanical stress. This design ensures an even load distribution, which minimizes wear and maintains performance over the long term.

Maintenance:
Careful maintenance of this spherical roller bearing is essential for consistently high performance.

Recommendations:

• Regular re-lubrication via the lubrication groove and the lubrication holes in the outer ring
• Use of a lubricating grease matched to temperature, load and speed
• Thorough cleaning of the housing seating before each lubrication
• Increased attention when operating in humid or dusty environments
• Inadequate lubrication is the primary cause of premature bearing failure

Sealing:
This spherical roller bearing is manufactured in an open design without integrated seals. This construction allows quick visual inspection and simplifies maintenance tasks. However, the absence of seals increases susceptibility to solid particles and moisture. A clean operating environment and consistent, regular maintenance are therefore essential.

Brand information:
NTN is one of the world’s leading manufacturers of rolling bearings and stands for the highest quality standards and continuous innovation. Since its founding in 1918, NTN has supplied the most demanding sectors such as aerospace, the automotive industry and heavy machinery manufacturing with reliable solutions.

Strengths:
• High dynamic load capacity due to optimized internal geometry
• Reliable operation at high temperatures (up to 200 °C)
• Reduced heat generation and lower vibrations in operation
• Simplified re-lubrication via lubrication groove and lubrication holes
• Solid brass cage with self-lubricating properties for longer service life
• Tapered bore for precise and stable mounting
• Ideal for environments with high mechanical loads

Applications:
This spherical roller bearing is particularly suitable for industrial applications with high mechanical loads and thermal stress. It is recommended, among others, for paper machines, industrial presses, water turbines and cable winding systems. Also in steel processing, which often involves extreme operating conditions, this bearing is a proven solution.