SKF 22218 EK Spherical Roller Bearing

The SKF 22218 EK is a double-row spherical roller bearing with a tapered bore (1:12 taper ratio, suffix K), designed to accommodate both heavy radial loads and bidirectional axial loads while tolerating angular misalignment of up to 2° — a capability that makes spherical roller bearings indispensable for shaft arrangements where thermal expansion, deflection, or mounting imprecision cannot be fully eliminated. The tapered bore accepts adapter sleeves or withdrawal sleeves for mounting on plain cylindrical shafts, providing a fast and repeatable setting method that is preferred in Saudi plant maintenance environments where shaft-to-housing concentricity varies across the installed equipment base.

With a bore of 90 mm, outer diameter of 160 mm, and width of 40 mm, the 22218 EK bridges the gap between the compact 222 series and the heavy 223 series, making it a common specification for medium-duty industrial fans, screw conveyors, bucket elevators, and heavy-duty gearboxes operating throughout Saudi Arabia's materials processing, cement, and food manufacturing sectors. SKF's symmetrical roller design in the 22218 series minimises heat generation under combined loading and supports the bearing's limiting speed of 3,400 rpm at grease lubrication — high enough for the vast majority of industrial applications encountered in Saudi plant maintenance.

SKF's manufacturing excellence in the 22218 EK is reflected in a basic dynamic load rating of 315 kN and a static load rating of 440 kN — figures that place this bearing among the most capable in its size class. The spherical outer raceway geometry provides the self-aligning function that prevents edge loading on the rollers when shaft deflection occurs, a failure mode responsible for a significant proportion of premature bearing failures in Saudi heavy industry where equipment foundations may settle or where shaft alignment is not maintained to tight tolerances between maintenance intervals.

Razz Middle East supplies the SKF 22218 EK to ARAMCO contractors, cement plant maintenance teams, and food industry equipment operators across Saudi Arabia. As part of the SKF Explorer spherical roller bearing range, the 22218 EK is compliant with ARAMCO's approved bearing specifications for process-critical rotating equipment, and Razz stocks the matching adapter sleeves and locknut sets required for correct installation on plain shafts.