The Timken 222 Series is a medium-heavy-duty, double-row, self-aligning spherical roller bearing covering the broadest bore range in the spherical family — from compact 25 mm up through 300 mm. With a moderate cross-section and balanced radial/axial capacity, it’s one of the most widely used spherical roller series in industry — found on small-to-medium pump shafts, fans, gearboxes, conveyor pulleys, electric motor bearings, agitators, and general rotating equipment.

• Construction: Double-row self-aligning, standard cross-section — compensates for shaft misalignment up to 1º under moderate-to-heavy radial load.
• Cage options: Both steel stamped window (“EJ” suffix, dominant across the range) and brass machined finger (“EM” suffix, standard on larger and shock-service sizes).
• Bore types: Both cylindrical (straight) and tapered (“K” suffix) bore variants.
• Relubrication: W33 feature (oil groove + three holes in outer ring) standard on most variants.
• Clearance classes: C0, C2, C3, C4 available — C3 or C4 recommended for elevated-temperature and interference-fit mounts.
• Bore range: 25 mm – 300 mm (0.98 in – 11.81 in) — widest bore coverage of any spherical roller series.
• Width range: 18 mm – 140 mm.
• Typical applications: Pump shafts, fans and blowers, electric motors, gearbox sections, conveyor pulleys, agitators and mixers, machine-tool spindles, material-handling equipment.

Why 222 vs. 223: The 222 has a narrower cross-section than the 223 — choose 222 when housing OD is constrained and loads are moderate; step up to 223 (heavier radial and axial capacity in same bore) for heavier continuous-duty service.