53222 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-28

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018)); 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 53222 model number is decoded

The 53200 series order number 53222 is a SKF single-direction thrust ball bearing for a 110 mm seat, built to ISO 104, with a sphered housing washer paired to a U seat washer, 110×160×40.2 mm boundary dimensions. Three separable parts make the set: the tight-bore shaft washer that locates on the shaft, the loose-bore housing washer in its register, and the ball-cage assembly; load is purely axial and acts in one direction. the 3 in 53xxx replaces the flat-seat 1: it still denotes one load direction, but the housing washer is sphered for pairing with a U seat washer, and the following digit 2–4 ranks the section. bore code 22 decodes to 110 mm (code 22 × 5) under the same 00/01/02/03-exception, ×5 rule SKF uses across its coded bearing ranges. the suffix-free listing carries the catalogue default: a pressed (stamped sheet-steel) ball-cage assembly, light and quiet, used across the small and medium sizes. Envelope 110×160×40.2 mm (4.331×6.299×1.583 in), 25.0 mm radial section, C 125 kN, C0 365 kN, Pu 11.6 kN. Mounted height H1 45 mm includes the U 222 seat washer; the bearing alone is 40.2 mm high. reference speed 1,700 r/min (thermal) and limiting speed 2,400 r/min (mechanical), catalogue mass 2900 g. Selection figures for 53222: the C0/C ratio is 2.92, Pu 11.6 kN is about 9 % of C, and the catalogue mass works out to roughly 26 g per millimetre of bore; the printed minimum-load factor is A 0.79. Speed planning separates the two ceilings mechanically: the pressed cage and balls tolerate 2,400 r/min while thermal balance under catalogue load sets the 1,700 r/min reference; at dm ≈ 135.0 mm the corresponding dn is approximately 324k mm·r/min. Speed-ratio note for this exact unit: the reference speed is 1,700 r/min against a 2,400 r/min limiting speed, a reference-to-limit ratio of 0.71. Sizing arithmetic on the 110 mm bore: 125 kN C over the 25.0 mm radial section gives 5.0 kN per section millimetre, and the 40.2 mm stack height is 1.61× that section — proportions typical of a 53200 thrust section. Preload at the mechanical ceiling: repeating Fam ≈ A·(n·dm/1000)² with factor A 0.79 at the 2,400 r/min limiting speed raises the required axial preload to about 82.9 kN; the reference-speed value 41.6 kN is the thermal design point. Sphered-seating order-number note: the convex back face of the housing washer is finish-ground spherical and is delivered to mate with the separately ordered U seat washer, which presents a flat face to the housing and a concave face to the washer; together they accommodate initial static misalignment, but the pair must be kept clean, greased at the spherical interface and never replaced by a washer-on-flat-steel makeshift. Procurement reminder for this specific page: 53222 and U 222 are two order numbers shipping as two articles; the installed 45 mm H1 rather than 40.2 mm H is the dimension the housing drawing must carry.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Replacement orders must list both 53222 and U 222: the seat washer is a separate article, and a U washer of the wrong size narrows the contact band of the 365 kN static-rated set.
• Dimension the housing to the 45 mm mounted height H1 (bearing plus U 222), not the 40.2 mm bearing height H — confusing the two is a recurring drawing error for the 53-series.
• Keep the sphered interface clean and lightly greased: scale, paint or grit between the washer back and U 222 locks the aligning function and frets under load; re-grease the contact at every overhaul.
• The shaft washer remains the tight, ground-bore component on the 110 mm shaft; the sphered part is the HOUSING washer, and the U seat washer is the loose flat-backed part — the fitting order is shaft washer and cage set first, then housing washer and U 222 into the register.
• Ordering discipline for 53222: the catalogue page quotes 53222 plus U 222 and its 125/365 kN ratings as one exact article; bare-number substitutions from another series or brand need a fresh dimension and rating check, not a like-for-like assumption.