22224 bearing: complete specifications & equivalents

Specification table

Source: ISO 15 boundary-dimensions standard · extracted 2026-09-24

Standard-interchange bearing: dimensions per ISO 15; CN clearance, P0 tolerance and a stamped-steel cage are catalogue defaults unless the supplier states otherwise, and mass is a geometry-derived estimate. Brand catalogue load ratings and limiting speeds for 22224 are being backfilled — use the inquiry form for certified values.

Cross references & equivalents

Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

How the 22224 model number is decoded

In the 22200-series (ISO 15 dimension series) the leading 2 marks a double-row spherical roller and the last two digits of 22224 encode the bore: code 24 = 120 mm (code × 5 from 04 upward). The ISO 15 envelope is 215 mm outside diameter and 58 mm width — 4.724 × 8.465 × 2.283 in, with a 47.5 mm radial section height. Two rows of symmetrical barrel rollers on a common sphered outer raceway self-align to shaft deflection while carrying heavy radial load and bidirectional axial load. Typical catalogue practice for a rotating inner ring is a m6 shaft seat, H7 housing and C3 internal clearance; K variants use a 1:12 tapered bore on an adapter sleeve — verify against the mounting arrangement.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The large 120 mm-bore 22224 mounts with real force: use induction heating or hydraulic drive-up on the tapered seat, measure residual clearance in micrometres, and plan lifting fixtures — the 58 mm double-row assembly cannot be drifted into position without brinelling.
• The 222 medium series at 120 mm bore (215×58 mm, 47.5 mm section) is the default general-purpose spherical row; on the same bore a 22324 is larger and wider with far higher load rating — do not swap a failed 22324 down to a 22224 without re-rating life.
• The 58 mm-wide 22224 seats against shaft and housing shoulders whose fillet must clear the bearing chamfer: keep the corner radius small enough that the 120 mm bore and 215 mm OD faces abut square — an undercut beats an oversized radius, which lifts the ring and edge-loads the 47.5 mm section.
• For a cylindrical-bore 22224, warm the inner ring to 80–100 °C (induction heater, never a flame) and slide it dry to the shoulder of the 120 mm shaft; cooling creates the interference, while hammering cold through the 215 mm assembly dents the sphered raceways.
• Relubricate 22224 through the W33 groove while the shaft turns slowly so fresh grease flushes the full 58 mm-wide roller set; pumping grease into a stationary bearing channels it past one row and leaves the other side of the 120 mm bore starved.
• Self-aligning is not a licence to ignore alignment: 22224 accommodates typically around 1° of angular misalignment under normal load (roughly 2° only in favourable, light-load conditions) — the exact figure falls with load, so check the catalogue value rather than designing to the maximum.
• Spherical rollers need a minimum radial load to keep the rollers driven — as a rule of thumb about 2% of the basic dynamic load rating; an unloaded 22224 on an idler or in a cold-start drive will skid and smear, so add preload, reduce the bearing size or use a sealed grease-filled variant.