22313 bearing: complete specifications & equivalents
The 22313 is a ISO 15 radial bearing sized 65 x 140 x 48 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Bore diameter d | 65 mm |
| Outer diameter D | 140 mm |
| Width B | 48 mm |
| Seal / shield | open |
| Internal clearance | CN / C3 / C4 available |
| Tolerance class | P0 |
| Cage | steel |
| Operating temperature | -30 to +120 °C |
| Mass (geometry estimate) | 2958 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 22313 are being backfilled — use the inquiry form for certified values.
Dimensions in inches & 22300-series range
| Bore d | 2.559 in |
|---|---|
| Outer diameter D | 5.512 in |
| Width B | 1.89 in |
| ISO bore code | 13 |
| Radial section height (D−d)/2 | 37.5 mm |
| Smallest bore in 22300-series | 40 mm |
| Largest outer diameter in 22300-series | 320 mm |
| Width range across 22300-series | 33–108 mm |
| Bore position in 22300-series (smallest first) | 6 of 18 |
| Bore above smallest 22300-series size | 25 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 22313 | 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 22313 model number is decoded
In the 22300-series (ISO 15 dimension series) the leading 2 marks a double-row spherical roller and the last two digits of 22313 encode the bore: code 13 = 65 mm (code × 5 from 04 upward). The ISO 15 envelope is 140 mm outside diameter and 48 mm width — 2.559 × 5.512 × 1.89 in, with a 37.5 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
- industrial gearbox and drive shafts
- elevator winches and hoist drums
- process crane travel wheels
- conveyor head and tail pulleys
- vibrating screens, feeders and shakeout machines
Known failure patterns
- 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
- fretting corrosion on a tapered-bore sleeve seat when drive-up is insufficient and the inner ring works on the adapter
- lubricant starvation and cage wear where the relubrication interval ignores the slow-speed, dirty operating regime
Selection pitfalls — read before you substitute
- On this 65 mm-bore 22313, 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 65 mm shaft.
- The 223 heavy wide series at 65 mm bore (140×48 mm) is selected for shock and high radial load in screens and crushers; its 37.5 mm section needs correspondingly wider shaft and housing shoulders and a stiffer shaft than a 22213 on the same journal.
- Before fitting 22313, machine the 65 mm shaft seat and 140 mm housing bore with a relief or small fillet so nothing bridges the bearing chamfer; the 48 mm-wide rings only load correctly when the full faces abut, and a large radius pinches the 37.5 mm radial section.
- On a K tapered bore with adapter sleeve, tighten the KM locknut to drive the 22313 up the sleeve, rotating the inner ring, and stop on residual clearance — measured with feelers at the unloaded rollers — not on torque alone; then lock the tab washer so the 65 mm seat cannot creep.
- When reusing a sleeve-mounted 22313, 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 65 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 22313 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 22313 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 22313 spherical roller bearing?
A 22313 double-row spherical roller bearing per ISO 15 has a 65 mm bore, 140 mm outer diameter and 48 mm width (2.559 × 5.512 × 1.89 in), a 37.5 mm radial section and roughly 2958 g geometry-based estimated mass; catalogue masses vary with cage and design.
How does the 22313 bore code work?
The leading 2 in 22313 denotes a double-row spherical roller, the middle digits give the ISO 15 dimension series, and the last two digits are bore code 13: 13 × 5 = 65 mm. The 140 mm OD and 48 mm width come from the dimension series (22300), not from the bore code alone.
How much misalignment can a 22313 accommodate?
Thanks to the sphered outer ring raceway, 22313 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 22313 and 22313K?
The plain 22313 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 22313 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.