YSA-206-2FK-HA-2306 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 YSA-206-2FK-HA-2306 model number is decoded

The YSA2 series order number YSA 206-2FK HA 2306 is a SKF insert bearing (Y-bearing) for a 23.812 mm (0.937 in) shaft: tapered-bore (1:12) insert bearing supplied on its HA 2306 adapter sleeve, built to the ISO 15 diameter-series envelope with a sphered OD of 62 mm. Inside is a sealed, symmetrically extended ball insert with a tapered bore, the adapter sleeve converting a plain commercial shaft into a precision seat without shoulders, screw points or collars. reading YSA: the inner-ring bore is tapered 1:12 and the bearing ships/specifies with its HA 2306 adapter sleeve; driving the sleeve home locks the plain shaft without shoulders or screw points. read the 23.812 mm bore from the HA 2306 sleeve designation — the YSA code marks the bearing seat size and the sleeve series is offset by one (sleeve code 2306 clamps the 23.812 mm shaft). the -2F external design pairs a nitrile contact seal with a plain sheet-steel thrower on both sides — a two-stage exclusion chain of flinger first, sealing lip second, typical of farm and conveyor duty. Envelope 23.812x62x28 mm (0.937x2.441x1.102 in), outer ring 18 mm wide, C 19.5 kN, C0 11.2 kN, Pu 0.475 kN. Mounted width B1 38 mm includes the adapter sleeve. Supplied/specified with HA 2306. The catalogue publishes a single speed ceiling, the limiting speed: 6,300 r/min; mass 390 g. At the printed limiting speed of 6,300 r/min the mean diameter dm = 42.906 mm implies dn about 2.70x10^5 mm.r/min — the speed-demand figure used when comparing this insert with open deep-groove sizes of the same bore. Rating split for the maintenance file: dynamic 19.5 kN (L10), static 11.2 kN (s0 shock check), fatigue 0.475 kN (adjusted life) — three separate uses for YSA 206-2FK HA 2306, none interchangeable with another. Grease-life arithmetic is dominated by speed: at dn approx 2.70x10^5 the sealed-for-life fill is planned for the catalogue's grease-life regime, which is why the limiting speed and the relubrication interval move together, and high-temperature mounts shorten both even when load is light. The s1 22.5 mm dimension is printed for the locking zone — the distance before the adapter sleeve is driven up the taper — and it is verified at mounting, not recoverable from d/D/B alone. Fillet discipline: the printed minimum-fillet limit means shaft and housing fillets must stay under that radius; a fillet that bottoms the 23.812x62 mm insert on its chamfer tilts the whole spherical seat. Adapter-sleeve note: tighten the sleeve locknut to the catalogue axial drive-up (s1 is printed as the starting distance before the sleeve is driven into the tapered bore); under-tightening lets the inner ring creep, over-tightening eliminates internal clearance and preloads the balls hot. Sleeve geometry on YSA-206-2FK-HA-2306: HA 2306 pulls the tapered inner ring onto the 23.812 mm plain shaft; the printed s1 22.5 mm is the pre-drive distance and 38 mm is the overall width including the sleeve hardware.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The order number is incomplete without the sleeve: YSA-206-2FK-HA-2306 specifies the HA 2306 adapter as part of the article; quoting only the YSA bearing risks delivery of a sleeve-less tapered bore that cannot mount.
• Plain-shaft advantage is also its trap: with no shoulders, axial location comes entirely from the sleeve/nut reaction — the abutment behind the sleeve must be square and present.
• Sleeve drive-up uses the printed s1 22.5 mm starting distance, not a torque value guessed from locknut size; re-measure the residual gap after tightening rather than trusting feel.
• Catalogue ratings belong to YSA 206-2FK HA 2306 as the adapter two f execution; other order numbers of the YSA 206-2FK size are different articles (open vs sealed, plain vs rubberized flinger, stainless vs carbon steel) and may carry different ratings or speeds — always quote the full designation.