NSK 22326EAE4 Large Spherical Roller Bearing

The NSK 22326EAE4 is a large-series double-row spherical roller bearing with a 130 mm bore, 280 mm outer diameter, and 93 mm width, built to sustain exceptionally high combined radial and axial loads in the heaviest rotating equipment found in Saudi Arabian industry. With a dynamic load rating of 1,100 kN and a static load rating of 1,500 kN, the 22326EAE4 is in the class of bearings used for large compressor main journals, heavy industrial gear unit output shaft supports, and large ball mill and kiln bearing positions where load concentrations exceed what a cylindrical roller bearing alone can handle. The EA brass cage and E4 quality grade designations are the same premium features found across NSK's spherical roller range — optimised roller guidance geometry, enhanced manufacturing inspection, and confirmed noise and vibration limits.

At Saudi Aramco, large spherical roller bearings in the 22300 series are specified for rotating equipment categorised as critical or essential service — typically multi-stage injection pumps, main export crude pumps, and gas processing compressor trains at Abqaiq, Ras Tanura, and the Shaybah remote oil field facilities. These pumps and compressors often run at reduced load during summer ambient temperature peaks, and the 22326EAE4's ability to handle variable combined loading while self-compensating for shaft misalignment caused by thermal cycling makes it uniquely suited to this demanding service class. NSK's bearing selection tools and application engineering resources allow Razz Middle East's team to verify correct bearing selection against ARAMCO rotating equipment specification documentation.

In Saudi cement production, the 22326EAE4 is used in large-diameter ball mill trunnion bearings and large kiln tyre support roller journal bearings where the combination of heavy radial loads from grinding media weight and axial loads from kiln thrust creates multi-directional loading that only spherical roller geometry can accommodate reliably. Cement plants operated by Qassim Cement and Saudi Cement run multiple large kilns and mills around the clock, making bearing reliability and long service life critical to production continuity. NSK's optimised internal geometry and superior steel quality give the 22326EAE4 a measurable fatigue life advantage over generic alternatives in this application.

Razz Middle East can source NSK 22326EAE4 bearings with competitive lead times from NSK's regional distribution network, and can provide technical support for mounting specification, hydraulic mounting tool selection, and clearance measurement for large bearing installation in Saudi plant shutdown maintenance periods.