53226 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 53226 model number is decoded

The 53200 series order number 53226 is a SKF single-direction thrust ball bearing for a 130 mm seat, built to ISO 104, with a sphered housing washer paired to a U seat washer, 130×190×47.9 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 26 decodes to 130 mm (code 26 × 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 130×190×47.9 mm (5.118×7.48×1.886 in), 30.0 mm radial section, C 186 kN, C0 585 kN, Pu 17 kN. Mounted height H1 53 mm includes the U 226 seat washer; the bearing alone is 47.9 mm high. reference speed 1,300 r/min (thermal) and limiting speed 1,800 r/min (mechanical), catalogue mass 4850 g. Speed planning separates the two ceilings mechanically: the pressed cage and balls tolerate 1,800 r/min while thermal balance under catalogue load sets the 1,300 r/min reference; at dm ≈ 160.0 mm the corresponding dn is approximately 288k mm·r/min. Selection figures for 53226: the C0/C ratio is 3.15, Pu 17 kN is about 9 % of C, and the catalogue mass works out to roughly 37 g per millimetre of bore; the printed minimum-load factor is A 1.8. Bore-to-OD planning: OD 190 over bore 130 is a 1.46× step for this size, and the 47.9 mm height gives a bore/height ratio of 2.71; use these ratios when the housing recess around the 130 mm shaft is the first constraint. Capacity density: 186 kN C from 4.850 kg of bearing steel gives about 38.4 kN per kilogram; static density is correspondingly 120.6 kN/kg at C0 585 kN. Track-circle loading: per millimetre of mean track circumference the 186 kN dynamic rating corresponds to roughly 0.37 kN/mm of π·dm track, a useful comparison against the other dimension series of the 130 mm bore. 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: 53226 and U 226 are two order numbers shipping as two articles; the installed 53 mm H1 rather than 47.9 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 53226 and U 226: the seat washer is a separate article, and a U washer of the wrong size narrows the contact band of the 585 kN static-rated set.
• Dimension the housing to the 53 mm mounted height H1 (bearing plus U 226), not the 47.9 mm bearing height H — confusing the two is a recurring drawing error for the 53-series.
• The self-aligning feature is checked at commissioning by hand: with the shaft under no load the assembly must swivel and settle; a stiff spherical seat means dirt, a mismatched U washer, or a register bored off-axis.
• The shaft washer remains the tight, ground-bore component on the 130 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 226 into the register.
• Catalogue ratings are SKF PUB BU/P1 17000 figures for 53226 as the single sphered pressed steel execution; other order numbers of the 53226 size are different products and may carry different ratings or seating geometry — always quote the full designation including the U 226 seat washer when purchasing.