53412-M 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 53412-M model number is decoded

53412 M is SKF's 60 mm-bore single-direction thrust ball bearing in the 53400 series to the ISO 104 dimension plan, with a sphered housing washer paired to a U seat washer, measuring 60×130×54 mm U 412 seat washer companion included in the mounted H1 dimension. The separable set comprises a shaft washer (ground bore, tight fit on the shaft), a loose-bore housing washer and one ball-cage assembly, reacting axial force in one direction and carrying no radial load. in the 53xxx designation the 3 marks a single-direction bearing whose housing washer has a sphered (convex) seating surface, intended to run against the matching U seat washer; the third digit 2–4 grades the section. the final two digits 12 encode the bore as 60 mm (code 12 × 5), the standard SKF bore-code rule shared with radial bearings. suffix M identifies a one-piece machined brass cage, ball-centred: the large-size and heavy-section option for higher speeds, shock loads and thin-film lubrication where a pressed cage would distort. Envelope 60×130×54 mm (2.362×5.118×2.126 in), 35.0 mm radial section, C 199 kN, C0 430 kN, Pu 16 kN. Mounted height H1 58 mm includes the U 412 seat washer; the bearing alone is 54 mm high. reference speed 1,600 r/min (thermal) and limiting speed 2,200 r/min (mechanical), catalogue mass 3800 g. Speed planning separates the two ceilings mechanically: the pressed brass cage and balls tolerate 2,200 r/min while thermal balance under catalogue load sets the 1,600 r/min reference; at dm ≈ 95.0 mm the corresponding dn is approximately 209k mm·r/min. Speed-ratio note for this exact unit: the reference speed is 1,600 r/min against a 2,200 r/min limiting speed, a reference-to-limit ratio of 0.73. Track-circle loading: per millimetre of mean track circumference the 199 kN dynamic rating corresponds to roughly 0.67 kN/mm of π·dm track, a useful comparison against the other dimension series of the 60 mm bore. Minimum-load arithmetic: with dm ≈ 95.0 mm and factor A 0.96, Fam ≈ A·(n·dm/1000)² at the 1,600 r/min reference speed is about 22.2 kN for 53412 M; below that preload the balls skid and smear the tracks. Washer-stack proportions: the U 412 seat washer adds 4.0 mm to the 54 mm bearing height for a mounted H1 of 58 mm, while the 35.0 mm radial section against 60 mm bore (section/bore ≈ 0.58) identifies the envelope. Heavy sphered-execution note: this M order number combines the machined brass ball-centred cage with the sphered housing washer and its U seat washer; it is the large-bore answer for hook blocks and pivots whose fabricated structure deflects — verify the spherical pair swivels freely under a light preload before the working load goes on. The M brass-cage option at 60 mm bore pairs the heavy-section cage with the U 412 seat requirement — order all three articles (bearing + U washer + appropriate lubricant) together, and log the H1 58 mm installed dimension on the maintenance card.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The spherical seat accommodates INITIAL static misalignment between shaft and housing; it is not a swivel for continuous oscillation, and the bearing still carries pure axial load with no radial capacity.
• The shaft washer remains the tight, ground-bore component on the 60 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 412 into the register.
• 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.
• Replacement orders must list both 53412 M and U 412: the seat washer is a separate article, and a U washer of the wrong size narrows the contact band of the 430 kN static-rated set.
• Ordering discipline for 53412: the catalogue page quotes 53412 M plus U 412 and its 199/430 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.