52207 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 52207 model number is decoded

The 52200 series order number 52207 is a SKF double-direction thrust ball bearing for a 30 mm seat, built to ISO 104, with a flat housing seating surface, 30×62×34 mm boundary dimensions. Inside the unit sit a single central shaft washer with a ground interference bore, two outward-facing loose housing washers and two independent ball-cage assemblies, so axial force is reacted in both directions from one housing recess. bore-coding caveat: on 52/54 double-direction bearings the last two digits are an order-number code, not ×5 millimetres — this size carries a 30 mm bore per the ISO 104 table, and guessing from the code gives the wrong shaft. 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 30×62×34 mm (1.181×2.441×1.339 in), 16.0 mm radial section, C 35.1 kN, C0 73.5 kN, Pu 2.7 kN. reference speed 3,000 r/min (thermal) and limiting speed 4,300 r/min (mechanical), catalogue mass 410 g. Pitch-diameter arithmetic: dm = (30+62)/2 = 46.0 mm; at the 4,300 r/min limiting speed that corresponds to roughly 198k mm·r/min, the figure used when comparing cage speed demand across the thrust-ball series. Minimum-load arithmetic: with dm ≈ 46.0 mm and factor A 0.028, Fam ≈ A·(n·dm/1000)² at the 3,000 r/min reference speed is about 533 N for 52207; below that preload the balls skid and smear the tracks. Track-circle loading: per millimetre of mean track circumference the 35.1 kN dynamic rating corresponds to roughly 0.24 kN/mm of π·dm track, a useful comparison against the other dimension series of the 30 mm bore. Rating split for documentation: dynamic 35.1 kN (L10 life), static 73.5 kN (safety factor s0), fatigue limit 2.7 kN (adjusted life) — three different uses of three different numbers for 52207, none interchangeable with another. Stack/annulus proportions: the 34 mm axial stack over the 2,312 mm² washer annulus gives 14.71 mm of height per annular square millimetre ×10⁻³, and at 410 g the bearing holds about 179.3 kN of C0 per kilogram. Double-direction order-number note: the unit is built around one central shaft washer with a ground bore and tracks on both faces, flanked by two housing washers and two independent ball-cage assemblies; observe the assembly orientation (the two housing washers face outwards) and note that a 52-series unit replaces a mirrored pair of 51-series bearings only after the stack height and seat drawings are re-checked. At 30 mm bore and 34 mm overall height the unit drops into one recess where a mirrored single-direction pair would need two seats; both loose 62 mm housing washers must remain free to slide during thermal movement.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Torque the cover to leave the catalogue axial freedom, never solid: a clamped double-direction stack cannot float to its thermal position, and at 4,300 r/min even a small thermal thrust preload smears the hottest track.
• Service both cage sets together: replacing only the noisy side while leaving the worn 73.5 kN opposite track in place reproduces the failure within weeks — inspect both shaft-washer faces and both loose washers at removal.
• Do not replace a 52207 with two single-direction 51-series bearings without re-checking the arrangement: envelope heights, seat details and catalogue ratings differ, even at the same 30×62 mm bore and OD.
• Where shaft and housing cannot be kept square, the sphered 54-series execution of the same bore with two U seat washers is the self-aligning counterpart; the flat 52200 unit has no alignment capacity.
• Ordering discipline for 52207: the catalogue page quotes 52207 and its 35.1/73.5 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.