22320 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings) · extracted 2026-09-26

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.

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 22320 model number is decoded

22320 E belongs to the SKF spherical roller range — the 100 mm bore entry in the 22300-series series (dimension series 23 (heavy OD, wide)), dimensioned 215 mm OD and 73 mm wide. Digit by digit, 22320 reads as bearing type 2 (spherical roller, two barrel-roller rows), dimension series 23, and bore reference 20 resolving to 100 mm; 215 mm OD and 73 mm width are the matching ISO 15 boundary values. The trailing E is the SKF optimized internal design: larger rollers and a stamped window-type steel cage give higher load ratings than the older CC geometry; EK is the same bearing with a 1:12 tapered bore for adapter sleeves. The 57.5 mm radial section height ((215−100)/2) and 13500 g catalogue mass frame a 100 mm bore bearing rated at 847 kN C — roughly 8.47 kN of dynamic capacity per millimetre of bore before application factors. Mount with the spherical bearing's self-alignment in mind: it compensates ≈ 0.5–2.5° of misalignment depending on series, but the shaft and housing seats still set the datum — a rotating inner ring on a 100 mm shaft typically takes a k5 seat with an H7 housing bore.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Mount the 100 mm bore 22320 by induction heating (max 120 °C) or oil injection — driving a bearing of this section home through the rollers brinells both raceways, and the damage only speaks up as vibration hours later.
• The 22300-series series at 100 mm bore (215×73 mm) is the heavy wide-section choice — highest capacity, lowest speed limit; do not substitute a 222 or 230 series in the same bore without re-checking both life and the 3,000 r/min ceiling.
• The 22320 shares its ISO 15 envelope across brands, but internal geometry differs — SKF load ratings in this row are 847/950 kN; another maker's same-size bearing may rate higher or lower, so do not interchange on envelope alone.
• Catalogue reference speed and limiting speed are different limits: the 2,400 r/min reference is a thermal criterion under load, while the 3,000 r/min limiting value is the mechanical ceiling — observe both.
• The 847/950 kN ratings are SKF catalogue values for this exact execution (22320 E); SKF can revise internal geometry without changing the order number, so keep the catalogue version (SKF catalogue PUB BU/P1 17000) with the specification and re-verify for critical drives.
• SKF lists several executions of 22320 (cylindrical bore as listed, tapered-bore 22320 EK variant, plus sealed and vibrating-screen options in the same envelope); they are not interchangeable order numbers — quote the full 22320 E designation when purchasing.