YSA-210-2FK-HE-2310 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-210-2FK-HE-2310 model number is decoded

Listed in SKF 17000 chapter 2, YSA 210-2FK HE 2310 is a tapered-bore (1:12) insert bearing supplied on its HE 2310 adapter sleeve, 44.45x90x37 mm overall, whose convex spherical outer ring pivots in the spherical bore of a Y-pillow, Y-flange or take-up housing. Construction combines capped deep-groove geometry, a tapered inner-ring bore and the supplied adapter sleeve with locknut seating — factory-grade concentricity on plain drawn shafting. YSA is the adapter-sleeve member of the Y range — tapered bore plus the HE 2310 sleeve converts a plain commercial shaft into a precisely located, demountable seat at 44.45 mm. adapter mounting means the effective bore is the sleeve bore: HE 2310 gives the 44.45 mm shaft fit with no machined shoulder required. -2F decodes to contact seals with additional plain flingers, one set per side; the unit is grease-filled for life and the flinger is why the sealed width exceeds the open one-side execution. Envelope 44.45x90x37 mm (1.75x3.543x1.457 in), outer ring 22 mm wide, C 35.1 kN, C0 23.2 kN, Pu 0.98 kN. Mounted width B1 55 mm includes the adapter sleeve. Supplied/specified with HE 2310. The catalogue publishes a single speed ceiling, the limiting speed: 4,000 r/min; mass 980 g. Mass-to-load ratio for YSA-210-2FK-HE-2310: 27.92 g of catalogue mass per rated kN of C, and 22.047 g per millimetre of bore — useful when comparing executions of the same 44.45x90 mm envelope on the drawing. Inner-geometry cross-reference: the catalogue shoulder diameters (d1 62.51 mm, d3 70 mm) set the shaft-abutment and sleeve limits; an abutment larger than these numbers contacts the seal or the plain flinger. Spherical-seat note in numbers: the 90 mm OD is ground spherical, so the self-aligning pivot happens on a circle roughly pi x 67.225 = 211.194 mm in mean circumference — keep that interface greased, because corrosion locking turns the pivot into a fixed misaligned mount. Pitch-diameter arithmetic: dm = (44.45+90)/2 = 67.225 mm; at the 4,000 r/min limiting speed the ball set runs at dn approx 2.69x10^5, reduced from an open bearing mainly by seal lip friction and the life-long grease fill. Outer-vs-overall width: the outer ring is 22 mm wide inside the 37 mm total, so the extended inner ring accounts for 0.405 of the overall width (7.5 mm of axial projection per side). 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. Mounting sequence for YSA-210-2FK-HE-2310: slide HE 2310 on first, seat the bearing in the housing register, then draw the nut to drive-up — reversing the order (sleeve fully tightened before housing engagement) locks in misalignment the sphered seat cannot cure.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Sleeve drive-up uses the printed s1 31.1 mm starting distance, not a torque value guessed from locknut size; re-measure the residual gap after tightening rather than trusting feel.
• The order number is incomplete without the sleeve: YSA-210-2FK-HE-2310 specifies the HE 2310 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.
• The 35.1/23.2 kN figures belong specifically to YSA 210-2FK HE 2310; HV stainless, AG agricultural and VE495 zinc-plated variants of the same envelope publish derated values, so write the complete order number including suffixes on the purchase and maintenance records.