52316 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 52316 model number is decoded

Listed in SKF 17000 chapter 5, 52316 is an ISO 104 double-direction thrust ball bearing, 65 mm bore and 140 mm OD on a flat housing seat, standing 79 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 52316 is 65 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 65×140×79 mm (2.559×5.512×3.11 in), 37.5 mm radial section, C 159 kN, C0 390 kN, Pu 13.7 kN. reference speed 1,300 r/min (thermal) and limiting speed 1,800 r/min (mechanical), catalogue mass 4950 g. Washer-annulus check: the π/4·(D²−d²) contact annulus of 52316 covers about 12,075 mm², distributing C0 390 kN over a mean track circle of π·dm ≈ 322 mm. Section proportions: the 37.5 mm radial section compares with 65 mm of bore (section/bore ≈ 0.58) and the 79 mm height is 2.11× that section — the proportions that identify the 52300 envelope at a glance. Selection figures for 52316: the C0/C ratio is 2.45, Pu 13.7 kN is about 9 % of C, and the catalogue mass works out to roughly 76 g per millimetre of bore; the printed minimum-load factor is A 0.79. Mass and section check: 4950 g inside the 65×140×79 mm outline leaves a 37.5 mm radial section, and the 390 kN static rating is 2.45× the dynamic rating — plan static safety and minimum preload against those figures. Static-first selection data: 390 kN C0 spread across the 79 mm stack gives 4.9 kN of static rating per height millimetre, and the 4950 g mass/C0 ratio is about 13 g per static kN — crane-hook and screw positions are normally sized on these two figures. 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 65 mm bore and 79 mm overall height the unit drops into one recess where a mirrored single-direction pair would need two seats; both loose 140 mm housing washers must remain free to slide during thermal movement.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The double-direction 52316 is one central shaft washer with tracks on both faces, two housing washers and two ball-cage assemblies — a single unit locating the 65 mm shaft axially in both directions instead of a mirrored pair.
• Each direction independently needs the minimum axial load (factor A 0.79): the side that is momentarily unloaded during slow reversal skids first, so arrange preload or symmetry rather than assuming the loaded side drives the idle side.
• The central shaft washer takes the interference fit on the 65 mm shaft while both outer housing washers run loose in their registers; both loose washers need positive axial retention on vertical shafts.
• Torque the cover to leave the catalogue axial freedom, never solid: a clamped double-direction stack cannot float to its thermal position, and at 1,800 r/min even a small thermal thrust preload smears the hottest track.
• The 159/390 kN figures belong to 52316 specifically (the double flat pressed steel execution of 52316); suffixed, sphered and counterpart-series order numbers are separate articles, so write the complete designation on the order and the maintenance record.