54211 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 54211 model number is decoded

Listed in SKF 17000 chapter 5, 54211 is an ISO 104 double-direction thrust ball bearing, 45 mm bore and 90 mm OD, with a sphered housing washer and U seat washer, standing 49.6 mm high before installation. Construction is a five-component stack: one central shaft washer with tracks on both faces, two outward-facing housing washers and two cage sets, which lets one housing recess accept thrust from either direction. note the bore of 54211 is 45 mm by the dimension table: the double-direction series was deliberately aligned to the 51/53 washer sets with shifted codes, so the familiar 04=20 arithmetic does not apply here. no cage suffix means the standard stamped steel retainer — a pressed sheet-metal ball-cage assembly that covers the bulk of the thrust-ball assortment. Envelope 45×90×49.6 mm (1.772×3.543×1.953 in), 22.5 mm radial section, C 58.5 kN, C0 134 kN, Pu 4.9 kN. Mounted height H1 55 mm includes the U 211 seat washer; the bearing alone is 49.6 mm high. reference speed 2,200 r/min (thermal) and limiting speed 3,000 r/min (mechanical), catalogue mass 1300 g. Imperial cross-check for procurement drawings: 1.772 in bore, 3.543 in OD, 1.953 in height, and the 1300 g catalogue mass converts to 1.300 kg (45.9 oz). Washer-stack proportions: the U 211 seat washer adds 5.4 mm to the 49.6 mm bearing height for a mounted H1 of 55 mm, while the 22.5 mm radial section against 45 mm bore (section/bore ≈ 0.50) identifies the envelope. Pitch-diameter arithmetic: dm = (45+90)/2 = 67.5 mm; at the 3,000 r/min limiting speed that corresponds to roughly 203k mm·r/min, the figure used when comparing cage speed demand across the thrust-ball series. Rating split for documentation: dynamic 58.5 kN (L10 life), static 134 kN (safety factor s0), fatigue limit 4.9 kN (adjusted life) — three different uses of three different numbers for 54211, none interchangeable with another. Selection figures for 54211: the C0/C ratio is 2.29, Pu 4.9 kN is about 8 % of C, and the catalogue mass works out to roughly 29 g per millimetre of bore; the printed minimum-load factor is A 0.11. Bidirectional self-aligning note: TWO U seat washers are required for this order number, one behind each housing washer, and the catalogue H1 height includes them on both sides of the stack; the spherical interfaces accept initial misalignment in either load direction but are not pivots for continuous oscillation. Bill of materials for this page is 54211 plus TWO × U 211; the 55 mm H1 stack sits in a housing whose two register faces should be machined in one clamping to keep both spherical axes coincident.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Order TWO seat washers for 54211 — the designation U 211 pairs with one side and a second U washer (same number) with the other; the catalogue 55 mm H1 includes both.
• The two spherical interfaces accommodate initial misalignment in either load direction but must stay clean, greased and static — continuous rocking frets the sphered contacts of even the 134 kN static-rated set.
• Minimum load factor A 0.11 applies to both load directions, and both brass pressed cage sets need lubricant reaching the upper track on a vertical shaft.
• Assembly is a five-component stack (central shaft washer, two cage sets, two sphered housing washers) plus the two U seat washers in the housing registers; dry-build the arrangement by hand first to confirm both sides swivel freely.
• Catalogue ratings are SKF PUB BU/P1 17000 figures for 54211 as the double sphered pressed steel execution; other order numbers of the 54211 size are different products and may carry different ratings or seating geometry — always quote the full designation including the U 211 seat washer when purchasing.