NTN WA22212EALLSD1/8A spherical roller bearing

NTN WA22212EALLSD1/8A belongs to spherical roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for WA22212EALLSD1/8A and any equivalents.

For shafts that flex and mountings that are never perfectly aligned, the NTN WA series spherical roller bearing is a double-row, self-aligning option. It carries heavy radial loads together with axial loads in either direction. The spherical outer raceway works with a brass cage to absorb angular misalignment between shaft and housing, which is why this series shows up in heavy machinery, conveyors, mills and other industrial equipment where robustness matters.

Reading the code helps when you order. The WA prefix marks a special execution with a brass cage and features aimed at demanding duty. The digits that follow are the ISO size code: the first pair gives the dimension series, the second pair the bore diameter. Suffixes EALLSD and 1/8A describe construction variants: E for a high-strength machined brass cage, A for an optimized internal design, LL for special sealing, SD for lubrication grooves or holes, and 1/8A for a particular tolerance or clearance. Together they define how the bearing mounts and runs.

In North and South American industry, WA series bearings appear in mining equipment, cement plants, aggregate processing, conveyor belts, flour mills and food-industry machines. Their capacity for heavy loads and misalignment makes them common in gearboxes, high-flow pumps, industrial fans and drive shafts. Steel operations and paper manufacturing also use them where conditions are severe and reliability is required.

Selection starts with the radial and axial load, the rotation speed and the environment. The LL seal keeps contaminants out and lubricant in, so it fits dusty or humid locations. Check that internal clearance suits the application: too much can cause vibration, too little raises temperature. During mounting, keep initial alignment within permissible limits and use suitable methods such as a hydraulic press or induction heating to protect the raceways. Follow the manufacturer's lubrication instructions for quantity and frequency.

Spherical roller bearings can be swapped between brands when the main dimensions (inner diameter, outer diameter and width) and the execution type match. For a replacement, compare tolerances, internal clearance and sealing. The NTN WA series may have equivalents in other brands with similar designations, but load and speed conditions must be compatible. The complete part number of the original bearing is the best reference when in doubt.

To request a quote for an NTN WA series spherical roller bearing, send the complete part number or your application dimensions on WhatsApp or by email. The team replies promptly, can suggest equivalents and helps you choose the right bearing.