3206-ATN9 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-27

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 3206-ATN9 model number is decoded

3206 ATN9 is SKF's 30 mm-bore double-row angular-contact ball bearing of the 3200 series — two ball rows back-to-back for two-direction axial location in one unit, 30×62×23.8 mm. A on a double-row bearing means no filling slots, so both rows carry their full ball complement in both directions. glass-fibre reinforced PA66 cage, ball-centred (suffix TN9), with a 120 °C continuous-temperature ceiling. Envelope 30×62×23.8 mm (1.181×2.441×0.937 in), 16.0 mm radial section height, C 30 kN, C0 20.4 kN, Pu 0.865 kN.reference speed 11,000 r/min (thermal) and limiting speed 10,000 r/min (mechanical), catalogue mass 290 g. Mass and section check: 290 g inside the 30×62×23.8 mm outline leaves a 16.0 mm radial section, and the 20.4 kN static rating is 0.68× the dynamic rating — plan static safety and minimum load against those numbers rather than against sister executions. The 0.865 kN fatigue load limit is the equivalent-load floor for long-life adjustment; with 30/20.4 kN ratings and 290 g mass this execution carries about 1.00 kN of C per millimetre of bore. Speed-ratio note for this exact unit: the reference speed is 11,000 r/min against a 10,000 r/min limiting speed, i.e. a reference-to-limit ratio of 1.10.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• A capped 3206-2Z/-2RS1 execution of this envelope exists for sealed-for-life duty; an open double-row bearing needs application sealing and a defined lubricant supply.
• Interference goes on the rotating ring (about k5 at 30 mm bore); the wide 23.8 mm ring is sensitive to tilted seats, so check squareness before clamping.
• The D executions have a two-piece inner ring: mount both halves square to each other, never press on the outer ring, and keep the split faces clean during fitting.
• Compared with a single-row pair of the same bore, the double-row 3206 occupies less axial space but offers less freedom to adjust preload — do not substitute without re-checking the arrangement.
• Catalogue ratings are SKF PUB BU/P1 17000 figures for 3206 ATN9 as the double atn9 execution; the other order numbers of the 3206 size are different products and may carry different ratings — always quote the full designation when purchasing.