52236-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 52236-M model number is decoded

52236 M is SKF's 150 mm-bore double-direction thrust ball bearing in the 52200 series to the ISO 104 dimension plan, with a flat housing seating surface, measuring 150×250×98 mm. The unit stacks one central shaft washer (ground bore, tight on the shaft), two outward-facing housing washers and two ball-cage assemblies, reacting axial force in both directions. double-direction 52/54 numbering does NOT decode the bore by the usual single-direction ×5 code — read the 150 mm bore from the dimension table; codes recur across the 522/523/524 sections and systematically trail the 51/53 code values. 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 150×250×98 mm (5.906×9.843×3.858 in), 50.0 mm radial section, C 302 kN, C0 1120 kN, Pu 28.5 kN. reference speed 800 r/min (thermal) and limiting speed 1,100 r/min (mechanical), catalogue mass 16000 g. Sizing arithmetic on the 150 mm bore: 302 kN C over the 50.0 mm radial section gives 6.0 kN per section millimetre, and the 98 mm stack height is 1.96× that section — proportions typical of a 52200 thrust section. Section proportions: the 50.0 mm radial section compares with 150 mm of bore (section/bore ≈ 0.33) and the 98 mm height is 1.96× that section — the proportions that identify the 52200 envelope at a glance. Mass and section check: 16000 g inside the 150×250×98 mm outline leaves a 50.0 mm radial section, and the 1120 kN static rating is 3.71× the dynamic rating — plan static safety and minimum preload against those figures. Stack/annulus proportions: the 98 mm axial stack over the 31,416 mm² washer annulus gives 3.12 mm of height per annular square millimetre ×10⁻³, and at 16000 g the bearing holds about 70.0 kN of C0 per kilogram. Envelope economics: the 98 mm axial height over a 50.0 mm radial section yields 3.1 kN of dynamic capacity per height millimetre, and the bearing weighs 16000 g for 302 kN C — about 53 g per rated kN. Heavy double-direction note: the M suffix on a 52/54-series bearing means both ball-cage assemblies are machined brass and ball-centred for the largest bidirectional positions; both cage sets share the same lubrication requirement, so the oil or grease feed must reach the upper as well as the lower track on vertical shafts. With 16000 g rotating partially with the shaft, check the rotor-balance influence of the central shaft washer at speeds approaching 1,100 r/min; the two loose washers do not rotate and contribute no imbalance.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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.
• Do not replace a 52236 with two single-direction 51-series bearings without re-checking the arrangement: envelope heights, seat details and catalogue ratings differ, even at the same 150×250 mm bore and OD.
• Observe the stack order at fitting: shaft washer central, the two housing washers facing outwards with a cage set on each side; the 98 mm total height is not twice a single-direction bearing height, so reuse of old cover dimensions is a trap.
• The double-direction 52236 is one central shaft washer with tracks on both faces, two housing washers and two ball-cage assemblies — a single unit locating the 150 mm shaft axially in both directions instead of a mirrored pair.
• Ordering discipline for 52236: the catalogue page quotes 52236 M and its 302/1120 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.