22214 bearing: complete specifications & equivalents
The 22214 is a ISO 15 radial bearing sized 70 x 125 x 31 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Bore diameter d | 70 mm |
| Outer diameter D | 125 mm |
| Width B | 31 mm |
| Seal / shield | open |
| Internal clearance | CN / C3 / C4 available |
| Tolerance class | P0 |
| Cage | steel |
| Operating temperature | -30 to +120 °C |
| Mass (geometry estimate) | 1332 g |
| Standard | ISO 15 |
| Catalog version | iso15-srb-geometry |
| Last verified | 2026-09-24 |
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 22214 are being backfilled — use the inquiry form for certified values.
Dimensions in inches & 22200-series range
| Bore d | 2.756 in |
|---|---|
| Outer diameter D | 4.921 in |
| Width B | 1.22 in |
| ISO bore code | 14 |
| Radial section height (D−d)/2 | 27.5 mm |
| Smallest bore in 22200-series | 25 mm |
| Largest outer diameter in 22200-series | 290 mm |
| Width range across 22200-series | 18–80 mm |
| Bore position in 22200-series (smallest first) | 10 of 22 |
| Bore above smallest 22200-series size | 45 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 22214 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
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 22214 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 22214 encode the bore: code 14 = 70 mm (code × 5 from 04 upward). The ISO 15 envelope is 125 mm outside diameter and 31 mm width — 2.756 × 4.921 × 1.22 in, with a 27.5 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 k5 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
Common applications
- paper machine felt and press rolls
- industrial gearbox and drive shafts
- elevator winches and hoist drums
- process crane travel wheels
- conveyor head and tail pulleys
Known failure patterns
- unloaded-row scuffing when pure thrust exceeds the catalogue axial capacity and one roller row unloads completely
- thermal seizure when an interference shaft fit plus hot running removes all residual radial clearance from a CN bearing
- raceway and roller spalling after the L10 life or from sustained overload and shock in crusher duty
- roller smearing and skid marks when the radial load falls below the minimum load needed to drive the roller set
- cage fatigue and fracture on vibratory screens supplied with normal CN clearance instead of a vibratory C4 fit
Selection pitfalls — read before you substitute
- On this 70 mm-bore 22214, specify C3 clearance as the default for an interference inner-ring fit and verify residual play after mounting; a medium-section row that ran free on the bench can be fully clamped at operating temperature on the 70 mm shaft.
- The 222 medium series at 70 mm bore (125×31 mm, 27.5 mm section) is the default general-purpose spherical row; on the same bore a 22314 is larger and wider with far higher load rating — do not swap a failed 22314 down to a 22214 without re-rating life.
- Check the shoulder geometry for 22214: a generous fillet on the 70 mm shaft looks strong but stops the 31 mm inner ring seating home; use the catalogue corner-relief radius and provide a withdrawal groove so the 27.5 mm-section outer ring presses flush in the 125 mm housing.
- Large 22214 tapers should be mounted with a hydraulic nut or oil injection: controlled drive-up sets the residual radial clearance on the 31 mm-wide double row, whereas bar-and-spanner force either under-drives (fretting) or over-drives (thermal seizure on first hot run).
- When reusing a sleeve-mounted 22214, inspect the adapter and lock parts together with the bearing: a stretched sleeve or a bent lockwasher tab that let the inner ring creep on the 70 mm journal must be replaced, or the new bearing frets the same seat.
- Match the cage to the duty: the E/CC stamped window-steel cage is the standard for general 22214 service, while the machined brass CA cage is preferred for heavy shock and vibratory applications — never replace a CA row with a CC row in a screen or crusher without re-rating.
- In a classic two-bearing arrangement the 22214 often serves as the non-locating (floating) bearing, taking radial load while the housing bore lets it drift; it can locate axially in both directions, but sustained pure thrust beyond the catalogue limit unloads one roller row.
Frequently asked questions
What are the dimensions of a 22214 spherical roller bearing?
A 22214 double-row spherical roller bearing per ISO 15 has a 70 mm bore, 125 mm outer diameter and 31 mm width (2.756 × 4.921 × 1.22 in), a 27.5 mm radial section and roughly 1332 g geometry-based estimated mass; catalogue masses vary with cage and design.
How does the 22214 bore code work?
The leading 2 in 22214 denotes a double-row spherical roller, the middle digits give the ISO 15 dimension series, and the last two digits are bore code 14: 14 × 5 = 70 mm. The 125 mm OD and 31 mm width come from the dimension series (22200), not from the bore code alone.
How much misalignment can a 22214 accommodate?
Thanks to the sphered outer ring raceway, 22214 normally accommodates angular misalignment of around 1° under load (up to about 2° in favourable, lightly loaded conditions); the permissible value is smaller under full load and depends on clearance and cage design, so check the catalogue figure for the actual duty.
What is the difference between 22214 and 22214K?
The plain 22214 has a cylindrical bore for a straight shaft seat. The K suffix denotes a 1:12 tapered bore, normally mounted on an H3xx adapter sleeve over a commercial shaft (or directly on a tapered journal); the bearing is driven up the sleeve to a specified residual clearance and locked with a KM nut and tab washer.
Should the 22214 be ordered with CN, C3 or C4 clearance?
Use C3 as the usual default when the rotating inner ring has an interference fit, because the fit plus thermal expansion reduces residual play; choose C4 (often with a vibratory cage design) for screens and feeders; order CN mainly for loose fits on stationary shafts or split housings. A W33 outer-ring lubrication groove is a separate, commonly combined option.
Reviewed & verified by the MPN Base engineering desk against source catalog iso15-srb-geometry on 2026-09-24. Read our editorial & correction policy.